70250031 has 8 divisors (see below), whose sum is σ = 104074160. Its totient is φ = 46833336.

The previous prime is 70250023. The next prime is 70250057. The reversal of 70250031 is 13005207.

It is not a de Polignac number, because 70250031 - 2³ = 70250023 is a prime.

It is a super-2 number, since 2×70250031² = 9870133711001922, 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 = 70249986 and 70250013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70250071) 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 7 ways as a sum of consecutive naturals, for example, 1300900 + ... + 1300953.

It is an arithmetic number, because the mean of its divisors is an integer number (13009270).

Almost surely, 2^70250031 is an apocalyptic number.

70250031 is a deficient number, since it is larger than the sum of its proper divisors (33824129).

70250031 is a wasteful number, since it uses less digits than its factorization.

70250031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601862 (or 2601856 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 70250031 is about 8381.5291564249. The cubic root of 70250031 is about 412.6186369506.

Adding to 70250031 its reverse (13005207), we get a palindrome (83255238).

The spelling of 70250031 in words is "seventy million, two hundred fifty thousand, thirty-one".