425404131 has 4 divisors (see below), whose sum is σ = 567205512. Its totient is φ = 283602752.

The previous prime is 425404099. The next prime is 425404139. The reversal of 425404131 is 131404524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425404131 - 2⁵ = 425404099 is a prime.

It is a super-2 number, since 2×425404131² = 361937349343730322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425404139) 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, 70900686 + ... + 70900691.

It is an arithmetic number, because the mean of its divisors is an integer number (141801378).

Almost surely, 2^425404131 is an apocalyptic number.

425404131 is a deficient number, since it is larger than the sum of its proper divisors (141801381).

425404131 is a wasteful number, since it uses less digits than its factorization.

425404131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141801380.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 425404131 is about 20625.3274155830. The cubic root of 425404131 is about 752.0855322538.

Adding to 425404131 its reverse (131404524), we get a palindrome (556808655).

The spelling of 425404131 in words is "four hundred twenty-five million, four hundred four thousand, one hundred thirty-one".