70534157 has 4 divisors (see below), whose sum is σ = 70888800. Its totient is φ = 70179516.

The previous prime is 70534151. The next prime is 70534249. The reversal of 70534157 is 75143507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75143507 = 23 ⋅3267109.

It is a cyclic number.

It is not a de Polignac number, because 70534157 - 2²⁶ = 3425293 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 (70534151) 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, 177023 + ... + 177420.

It is an arithmetic number, because the mean of its divisors is an integer number (17722200).

Almost surely, 2^70534157 is an apocalyptic number.

It is an amenable number.

70534157 is a deficient number, since it is larger than the sum of its proper divisors (354643).

70534157 is a wasteful number, since it uses less digits than its factorization.

70534157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354642.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 70534157 is about 8398.4615853143. The cubic root of 70534157 is about 413.1741668782.

The spelling of 70534157 in words is "seventy million, five hundred thirty-four thousand, one hundred fifty-seven".