70128144 has 60 divisors (see below), whose sum is σ = 196825200. Its totient is φ = 23308992.

The previous prime is 70128131. The next prime is 70128151. The reversal of 70128144 is 44182107.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94527 + ... + 95265.

It is an arithmetic number, because the mean of its divisors is an integer number (3280420).

Almost surely, 2^70128144 is an apocalyptic number.

It is an amenable number.

70128144 is an abundant number, since it is smaller than the sum of its proper divisors (126697056).

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

70128144 is a wasteful number, since it uses less digits than its factorization.

70128144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 70128144 is about 8374.2548325209. The cubic root of 70128144 is about 412.3798614324.

The spelling of 70128144 in words is "seventy million, one hundred twenty-eight thousand, one hundred forty-four".