425540131 has 8 divisors (see below), whose sum is σ = 462387200. Its totient is φ = 390138120.

The previous prime is 425540123. The next prime is 425540147. The reversal of 425540131 is 131045524.

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 425540131 - 2³ = 425540123 is a prime.

It is a super-2 number, since 2×425540131² = 362168806182994322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425540096 and 425540105.

It is not an unprimeable number, because it can be changed into a prime (425540111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360651 + ... + 361828.

It is an arithmetic number, because the mean of its divisors is an integer number (57798400).

Almost surely, 2^425540131 is an apocalyptic number.

425540131 is a deficient number, since it is larger than the sum of its proper divisors (36847069).

425540131 is a wasteful number, since it uses less digits than its factorization.

425540131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722529.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 425540131 is about 20628.6240694817. The cubic root of 425540131 is about 752.1656699605.

Adding to 425540131 its reverse (131045524), we get a palindrome (556585655).

The spelling of 425540131 in words is "four hundred twenty-five million, five hundred forty thousand, one hundred thirty-one".