157256101 has 2 divisors, whose sum is σ = 157256102. Its totient is φ = 157256100.

The previous prime is 157256053. The next prime is 157256107. The reversal of 157256101 is 101652751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152547201 + 4708900 = 12351^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 157256101 - 2⁹ = 157255589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157256101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157256107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78628050 + 78628051.

It is an arithmetic number, because the mean of its divisors is an integer number (78628051).

Almost surely, 2^157256101 is an apocalyptic number.

It is an amenable number.

157256101 is a deficient number, since it is larger than the sum of its proper divisors (1).

157256101 is an equidigital number, since it uses as much as digits as its factorization.

157256101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 157256101 is about 12540.1794644255. The cubic root of 157256101 is about 539.7622421545.

The spelling of 157256101 in words is "one hundred fifty-seven million, two hundred fifty-six thousand, one hundred one".