70149131 has 16 divisors (see below), whose sum is σ = 77177856. Its totient is φ = 63369216.

The previous prime is 70149109. The next prime is 70149133. The reversal of 70149131 is 13194107.

It is a cyclic number.

It is not a de Polignac number, because 70149131 - 2²² = 65954827 is a prime.

It is a super-2 number, since 2×70149131² = 9841801160110322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70149131.

It is not an unprimeable number, because it can be changed into a prime (70149133) 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 15 ways as a sum of consecutive naturals, for example, 182966 + ... + 183348.

It is an arithmetic number, because the mean of its divisors is an integer number (4823616).

Almost surely, 2^70149131 is an apocalyptic number.

70149131 is a deficient number, since it is larger than the sum of its proper divisors (7028725).

70149131 is a wasteful number, since it uses less digits than its factorization.

70149131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 70149131 is about 8375.5078055005. The cubic root of 70149131 is about 412.4209944804.

The spelling of 70149131 in words is "seventy million, one hundred forty-nine thousand, one hundred thirty-one".