157442097 has 4 divisors (see below), whose sum is σ = 209922800. Its totient is φ = 104961396.

The previous prime is 157442071. The next prime is 157442099. The reversal of 157442097 is 790244751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 157442097 - 2¹⁶ = 157376561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157442099) 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, 26240347 + ... + 26240352.

It is an arithmetic number, because the mean of its divisors is an integer number (52480700).

Almost surely, 2^157442097 is an apocalyptic number.

It is an amenable number.

157442097 is a deficient number, since it is larger than the sum of its proper divisors (52480703).

157442097 is an equidigital number, since it uses as much as digits as its factorization.

157442097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52480702.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 157442097 is about 12547.5932752062. The cubic root of 157442097 is about 539.9749611161.

The spelling of 157442097 in words is "one hundred fifty-seven million, four hundred forty-two thousand, ninety-seven".