157075199 has 4 divisors (see below), whose sum is σ = 160038936. Its totient is φ = 154111464.

The previous prime is 157075159. The next prime is 157075201. The reversal of 157075199 is 991570751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157075199 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 (157075129) 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, 1481789 + ... + 1481894.

It is an arithmetic number, because the mean of its divisors is an integer number (40009734).

Almost surely, 2^157075199 is an apocalyptic number.

157075199 is a deficient number, since it is larger than the sum of its proper divisors (2963737).

157075199 is an equidigital number, since it uses as much as digits as its factorization.

157075199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963736.

The product of its (nonzero) digits is 99225, while the sum is 44.

The square root of 157075199 is about 12532.9644936862. The cubic root of 157075199 is about 539.5551881100. Note that the first 3 decimals are identical.

The spelling of 157075199 in words is "one hundred fifty-seven million, seventy-five thousand, one hundred ninety-nine".