1425431902 has 8 divisors (see below), whose sum is σ = 2138509800. Its totient is φ = 712595304.

The previous prime is 1425431879. The next prime is 1425431941. The reversal of 1425431902 is 2091345241.

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

It is a super-2 number, since 2×1425431902² = 4063712214478675208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44752 + ... + 69667.

It is an arithmetic number, because the mean of its divisors is an integer number (267313725).

Almost surely, 2^1425431902 is an apocalyptic number.

1425431902 is a deficient number, since it is larger than the sum of its proper divisors (713077898).

1425431902 is a wasteful number, since it uses less digits than its factorization.

1425431902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120650.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1425431902 is about 37754.8924246911. The cubic root of 1425431902 is about 1125.4222354490.

The spelling of 1425431902 in words is "one billion, four hundred twenty-five million, four hundred thirty-one thousand, nine hundred two".