70224136 has 16 divisors (see below), whose sum is σ = 131961600. Its totient is φ = 35034384.

The previous prime is 70224131. The next prime is 70224137. The reversal of 70224136 is 63142207.

It is a self number, because there is not a number n which added to its sum of digits gives 70224136.

It is not an unprimeable number, because it can be changed into a prime (70224131) 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, 5776 + ... + 13183.

It is an arithmetic number, because the mean of its divisors is an integer number (8247600).

Almost surely, 2^70224136 is an apocalyptic number.

It is an amenable number.

70224136 is a deficient number, since it is larger than the sum of its proper divisors (61737464).

70224136 is a wasteful number, since it uses less digits than its factorization.

70224136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428 (or 19424 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 70224136 is about 8379.9842481952. The cubic root of 70224136 is about 412.5679320016.

The spelling of 70224136 in words is "seventy million, two hundred twenty-four thousand, one hundred thirty-six".