1425123479 has 16 divisors (see below), whose sum is σ = 1547226240. Its totient is φ = 1304851680.

The previous prime is 1425123451. The next prime is 1425123503. The reversal of 1425123479 is 9743215241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425123479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425123439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976052 + ... + 977510.

It is an arithmetic number, because the mean of its divisors is an integer number (96701640).

Almost surely, 2^1425123479 is an apocalyptic number.

1425123479 is a deficient number, since it is larger than the sum of its proper divisors (122102761).

1425123479 is a wasteful number, since it uses less digits than its factorization.

1425123479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030.

The product of its digits is 60480, while the sum is 38.

The square root of 1425123479 is about 37750.8076602342. The cubic root of 1425123479 is about 1125.3410597858.

The spelling of 1425123479 in words is "one billion, four hundred twenty-five million, one hundred twenty-three thousand, four hundred seventy-nine".