70128153 has 8 divisors (see below), whose sum is σ = 103893600. Its totient is φ = 46752084.

The previous prime is 70128151. The next prime is 70128181. The reversal of 70128153 is 35182107.

It is not a de Polignac number, because 70128153 - 2¹ = 70128151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2597339 = 70128153 / (7 + 0 + 1 + 2 + 8 + 1 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (70128151) 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, 1298643 + ... + 1298696.

It is an arithmetic number, because the mean of its divisors is an integer number (12986700).

Almost surely, 2^70128153 is an apocalyptic number.

It is an amenable number.

70128153 is a deficient number, since it is larger than the sum of its proper divisors (33765447).

70128153 is a wasteful number, since it uses less digits than its factorization.

70128153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597348 (or 2597342 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 70128153 is about 8374.2553698821. The cubic root of 70128153 is about 412.3798790735.

The spelling of 70128153 in words is "seventy million, one hundred twenty-eight thousand, one hundred fifty-three".