157901 has 2 divisors, whose sum is σ = 157902. Its totient is φ = 157900.

The previous prime is 157897. The next prime is 157907. The reversal of 157901 is 109751.

157901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121801 + 36100 = 349^2 + 190^2 .

It is an emirp because it is prime and its reverse (109751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157901 - 2² = 157897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78950 + 78951.

It is an arithmetic number, because the mean of its divisors is an integer number (78951).

2¹⁵⁷⁹⁰¹ is an apocalyptic number.

It is an amenable number.

157901 is a deficient number, since it is larger than the sum of its proper divisors (1).

157901 is an equidigital number, since it uses as much as digits as its factorization.

157901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 157901 is about 397.3675880089. The cubic root of 157901 is about 54.0499081347.

The spelling of 157901 in words is "one hundred fifty-seven thousand, nine hundred one".