157197041 has 2 divisors, whose sum is σ = 157197042. Its totient is φ = 157197040.

The previous prime is 157197031. The next prime is 157197043. The reversal of 157197041 is 140791751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122434225 + 34762816 = 11065^2 + 5896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157197041 is a prime.

Together with 157197043, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8826065 and since 157197041 and 8826065 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 157196992 and 157197010.

It is not a weakly prime, because it can be changed into another prime (157197043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78598520 + 78598521.

It is an arithmetic number, because the mean of its divisors is an integer number (78598521).

Almost surely, 2^157197041 is an apocalyptic number.

It is an amenable number.

157197041 is a deficient number, since it is larger than the sum of its proper divisors (1).

157197041 is an equidigital number, since it uses as much as digits as its factorization.

157197041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 157197041 is about 12537.8244125526. The cubic root of 157197041 is about 539.6946616294.

The spelling of 157197041 in words is "one hundred fifty-seven million, one hundred ninety-seven thousand, forty-one".