31070229 has 8 divisors (see below), whose sum is σ = 41459040. Its totient is φ = 20697456.

The previous prime is 31070219. The next prime is 31070233. The reversal of 31070229 is 92207013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31070229 - 2⁵ = 31070197 is a prime.

It is a super-2 number, since 2×31070229² = 1930718260224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31070199 and 31070208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31070219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659 + ... + 8055.

It is an arithmetic number, because the mean of its divisors is an integer number (5182380).

Almost surely, 2^31070229 is an apocalyptic number.

It is an amenable number.

31070229 is a deficient number, since it is larger than the sum of its proper divisors (10388811).

31070229 is a wasteful number, since it uses less digits than its factorization.

31070229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8019.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 31070229 is about 5574.0675453389. The cubic root of 31070229 is about 314.3751078552.

The spelling of 31070229 in words is "thirty-one million, seventy thousand, two hundred twenty-nine".