1425741781 has 8 divisors (see below), whose sum is σ = 1432880064. Its totient is φ = 1418614080.

The previous prime is 1425741773. The next prime is 1425741791. The reversal of 1425741781 is 1871475241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425741781 - 2³ = 1425741773 is a prime.

It is a super-2 number, since 2×1425741781² = 4065479252178103922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425741701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443526 + ... + 446728.

It is an arithmetic number, because the mean of its divisors is an integer number (179110008).

Almost surely, 2^1425741781 is an apocalyptic number.

It is an amenable number.

1425741781 is a deficient number, since it is larger than the sum of its proper divisors (7138283).

1425741781 is a wasteful number, since it uses less digits than its factorization.

1425741781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291.

The product of its digits is 62720, while the sum is 40.

The square root of 1425741781 is about 37758.9960274370. The cubic root of 1425741781 is about 1125.5037825337.

The spelling of 1425741781 in words is "one billion, four hundred twenty-five million, seven hundred forty-one thousand, seven hundred eighty-one".