157648815 has 32 divisors (see below), whose sum is σ = 283435200. Its totient is φ = 83128320.

The previous prime is 157648787. The next prime is 157648819. The reversal of 157648815 is 518846751.

157648815 is a `hidden beast` number, since 157 + 6 + 488 + 15 = 666.

It is not a de Polignac number, because 157648815 - 2¹⁷ = 157517743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157648819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5455 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (8857350).

Almost surely, 2^157648815 is an apocalyptic number.

157648815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157648815 is a deficient number, since it is larger than the sum of its proper divisors (125786385).

157648815 is a wasteful number, since it uses less digits than its factorization.

157648815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224 (or 13218 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 157648815 is about 12555.8279296907. The cubic root of 157648815 is about 540.2111828321.

The spelling of 157648815 in words is "one hundred fifty-seven million, six hundred forty-eight thousand, eight hundred fifteen".