70530157 has 8 divisors (see below), whose sum is σ = 71064000. Its totient is φ = 69998880.

The previous prime is 70530151. The next prime is 70530169. The reversal of 70530157 is 75103507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70530157 - 2³ = 70530149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70530151) 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, 139968 + ... + 140470.

It is an arithmetic number, because the mean of its divisors is an integer number (8883000).

Almost surely, 2^70530157 is an apocalyptic number.

It is an amenable number.

70530157 is a deficient number, since it is larger than the sum of its proper divisors (533843).

70530157 is a wasteful number, since it uses less digits than its factorization.

70530157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 70530157 is about 8398.2234430860. The cubic root of 70530157 is about 413.1663563461.

The spelling of 70530157 in words is "seventy million, five hundred thirty thousand, one hundred fifty-seven".