70136456 has 32 divisors (see below), whose sum is σ = 142181760. Its totient is φ = 32242752.

The previous prime is 70136447. The next prime is 70136459. The reversal of 70136456 is 65463107.

It is not an unprimeable number, because it can be changed into a prime (70136459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28241 + ... + 30623.

It is an arithmetic number, because the mean of its divisors is an integer number (4443180).

Almost surely, 2^70136456 is an apocalyptic number.

It is an amenable number.

70136456 is an abundant number, since it is smaller than the sum of its proper divisors (72045304).

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

70136456 is a wasteful number, since it uses less digits than its factorization.

70136456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2681 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 70136456 is about 8374.7511007791. The cubic root of 70136456 is about 412.3961533507.

The spelling of 70136456 in words is "seventy million, one hundred thirty-six thousand, four hundred fifty-six".