157047815 has 8 divisors (see below), whose sum is σ = 189405600. Its totient is φ = 125006112.

The previous prime is 157047797. The next prime is 157047827. The reversal of 157047815 is 518740751.

It is a happy number.

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 157047815 - 2¹⁶ = 156982279 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77924 + ... + 79913.

It is an arithmetic number, because the mean of its divisors is an integer number (23675700).

Almost surely, 2^157047815 is an apocalyptic number.

157047815 is a deficient number, since it is larger than the sum of its proper divisors (32357785).

157047815 is a wasteful number, since it uses less digits than its factorization.

157047815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158041.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 157047815 is about 12531.8719671085. The cubic root of 157047815 is about 539.5238314985.

The spelling of 157047815 in words is "one hundred fifty-seven million, forty-seven thousand, eight hundred fifteen".