157097 has 4 divisors (see below), whose sum is σ = 166356. Its totient is φ = 147840.

The previous prime is 157081. The next prime is 157103. The reversal of 157097 is 790751.

157097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 143641 + 13456 = 379^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 157097 - 2⁴ = 157081 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 (157007) 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, 4604 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (41589).

2¹⁵⁷⁰⁹⁷ is an apocalyptic number.

157097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

157097 is a deficient number, since it is larger than the sum of its proper divisors (9259).

157097 is an equidigital number, since it uses as much as digits as its factorization.

157097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258.

The product of its (nonzero) digits is 2205, while the sum is 29.

The square root of 157097 is about 396.3546391806. The cubic root of 157097 is about 53.9580149187.

The spelling of 157097 in words is "one hundred fifty-seven thousand, ninety-seven".