1425679149 has 4 divisors (see below), whose sum is σ = 1900905536. Its totient is φ = 950452764.

The previous prime is 1425679139. The next prime is 1425679159. The reversal of 1425679149 is 9419765241.

It is a happy number.

1425679149 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1425679139) and next prime (1425679159).

It is not a de Polignac number, because 1425679149 - 2¹⁶ = 1425613613 is a prime.

It is a super-3 number, since 3×1425679149³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425679098 and 1425679107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425679139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237613189 + ... + 237613194.

It is an arithmetic number, because the mean of its divisors is an integer number (475226384).

Almost surely, 2^1425679149 is an apocalyptic number.

It is an amenable number.

1425679149 is a deficient number, since it is larger than the sum of its proper divisors (475226387).

1425679149 is an equidigital number, since it uses as much as digits as its factorization.

1425679149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475226386.

The product of its digits is 544320, while the sum is 48.

The square root of 1425679149 is about 37758.1666530567. The cubic root of 1425679149 is about 1125.4873013854.

The spelling of 1425679149 in words is "one billion, four hundred twenty-five million, six hundred seventy-nine thousand, one hundred forty-nine".