70131612 has 12 divisors (see below), whose sum is σ = 163640456. Its totient is φ = 23377200.

The previous prime is 70131587. The next prime is 70131617. The reversal of 70131612 is 21613107.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70131617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922139 + ... + 2922162.

Almost surely, 2^70131612 is an apocalyptic number.

It is an amenable number.

70131612 is an abundant number, since it is smaller than the sum of its proper divisors (93508844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70131612 is a wasteful number, since it uses less digits than its factorization.

70131612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844308 (or 5844306 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 70131612 is about 8374.4618931607. The cubic root of 70131612 is about 412.3866590351.

Adding to 70131612 its reverse (21613107), we get a palindrome (91744719).

The spelling of 70131612 in words is "seventy million, one hundred thirty-one thousand, six hundred twelve".