157097599 has 4 divisors (see below), whose sum is σ = 157147936. Its totient is φ = 157047264.

The previous prime is 157097587. The next prime is 157097621. The reversal of 157097599 is 995790751.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 157097599 - 2¹³ = 157089407 is a prime.

It is a super-2 number, since 2×157097599² = 49359311223129602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157097519) 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, 20154 + ... + 26839.

It is an arithmetic number, because the mean of its divisors is an integer number (39286984).

Almost surely, 2^157097599 is an apocalyptic number.

157097599 is a deficient number, since it is larger than the sum of its proper divisors (50337).

157097599 is an equidigital number, since it uses as much as digits as its factorization.

157097599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50336.

The product of its (nonzero) digits is 893025, while the sum is 52.

The square root of 157097599 is about 12533.8581051486. The cubic root of 157097599 is about 539.5808349803.

The spelling of 157097599 in words is "one hundred fifty-seven million, ninety-seven thousand, five hundred ninety-nine".