70430157 has 12 divisors (see below), whose sum is σ = 116265760. Its totient is φ = 40245768.

The previous prime is 70430153. The next prime is 70430161. The reversal of 70430157 is 75103407.

It is an interprime number because it is at equal distance from previous prime (70430153) and next prime (70430161).

It is not a de Polignac number, because 70430157 - 2² = 70430153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70430157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70430153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558907 + ... + 559032.

Almost surely, 2^70430157 is an apocalyptic number.

It is an amenable number.

70430157 is a deficient number, since it is larger than the sum of its proper divisors (45835603).

70430157 is a wasteful number, since it uses less digits than its factorization.

70430157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117952 (or 1117949 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 70430157 is about 8392.2676911548. The cubic root of 70430157 is about 412.9709969920.

The spelling of 70430157 in words is "seventy million, four hundred thirty thousand, one hundred fifty-seven".