985425031 has 2 divisors, whose sum is σ = 985425032. Its totient is φ = 985425030.

The previous prime is 985424989. The next prime is 985425047. The reversal of 985425031 is 130524589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985425031 - 2⁹ = 985424519 is a prime.

It is a super-2 number, since 2×985425031² = 1942124983442701922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985423031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492712515 + 492712516.

It is an arithmetic number, because the mean of its divisors is an integer number (492712516).

Almost surely, 2^985425031 is an apocalyptic number.

985425031 is a deficient number, since it is larger than the sum of its proper divisors (1).

985425031 is an equidigital number, since it uses as much as digits as its factorization.

985425031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 985425031 is about 31391.4802295145. The cubic root of 985425031 is about 995.1178806997.

The spelling of 985425031 in words is "nine hundred eighty-five million, four hundred twenty-five thousand, thirty-one".