197412157 has 2 divisors, whose sum is σ = 197412158. Its totient is φ = 197412156.

The previous prime is 197412107. The next prime is 197412181. The reversal of 197412157 is 751214791.

197412157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128006596 + 69405561 = 11314^2 + 8331^2 .

It is a cyclic number.

It is not a de Polignac number, because 197412157 - 2⁷ = 197412029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197412107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98706078 + 98706079.

It is an arithmetic number, because the mean of its divisors is an integer number (98706079).

Almost surely, 2^197412157 is an apocalyptic number.

It is an amenable number.

197412157 is a deficient number, since it is larger than the sum of its proper divisors (1).

197412157 is an equidigital number, since it uses as much as digits as its factorization.

197412157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 37.

The square root of 197412157 is about 14050.3436612775. The cubic root of 197412157 is about 582.2702902885.

The spelling of 197412157 in words is "one hundred ninety-seven million, four hundred twelve thousand, one hundred fifty-seven".