157197650 has 12 divisors (see below), whose sum is σ = 292387722. Its totient is φ = 62879040.

The previous prime is 157197647. The next prime is 157197721. The reversal of 157197650 is 56791751.

157197650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 152300281 + 4897369 = 12341^2 + 2213^2 .

It is a super-2 number, since 2×157197650² = 49422202331045000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157197598 and 157197607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1571927 + ... + 1572026.

Almost surely, 2^157197650 is an apocalyptic number.

157197650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157197650 is a deficient number, since it is larger than the sum of its proper divisors (135190072).

157197650 is a wasteful number, since it uses less digits than its factorization.

157197650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143965 (or 3143960 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 41.

The square root of 157197650 is about 12537.8486990392. The cubic root of 157197650 is about 539.6953585756.

The spelling of 157197650 in words is "one hundred fifty-seven million, one hundred ninety-seven thousand, six hundred fifty".