31425140529 has 12 divisors (see below), whose sum is σ = 45497192832. Its totient is φ = 20901483000.

The previous prime is 31425140519. The next prime is 31425140569. The reversal of 31425140529 is 92504152413.

31425140529 is a `hidden beast` number, since 3 + 1 + 42 + 51 + 40 + 529 = 666.

It is not a de Polignac number, because 31425140529 - 2⁹ = 31425140017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31425140493 and 31425140502.

It is not an unprimeable number, because it can be changed into a prime (31425140519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4046797 + ... + 4054554.

It is an arithmetic number, because the mean of its divisors is an integer number (3791432736).

Almost surely, 2^31425140529 is an apocalyptic number.

It is an amenable number.

31425140529 is a deficient number, since it is larger than the sum of its proper divisors (14072052303).

31425140529 is a wasteful number, since it uses less digits than its factorization.

31425140529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101788 (or 8101785 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 31425140529 in words is "thirty-one billion, four hundred twenty-five million, one hundred forty thousand, five hundred twenty-nine".