157219097 has 12 divisors (see below), whose sum is σ = 184669056. Its totient is φ = 133446600.

The previous prime is 157219061. The next prime is 157219103. The reversal of 157219097 is 790912751.

It is a happy number.

It is not a de Polignac number, because 157219097 - 2¹² = 157215001 is a prime.

It is a super-2 number, since 2×157219097² = 49435688922990818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157219897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10529 + ... + 20622.

It is an arithmetic number, because the mean of its divisors is an integer number (15389088).

Almost surely, 2^157219097 is an apocalyptic number.

It is an amenable number.

157219097 is a deficient number, since it is larger than the sum of its proper divisors (27449959).

157219097 is a wasteful number, since it uses less digits than its factorization.

157219097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31268 (or 31261 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 157219097 is about 12538.7039601388. The cubic root of 157219097 is about 539.7199016057.

The spelling of 157219097 in words is "one hundred fifty-seven million, two hundred nineteen thousand, ninety-seven".