961157 has 2 divisors, whose sum is σ = 961158. Its totient is φ = 961156.

The previous prime is 961151. The next prime is 961159. The reversal of 961157 is 751169.

It is a happy number.

961157 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., 923521 + 37636 = 961^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 961157 - 2⁴ = 961141 is a prime.

Together with 961159, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961157.

It is not a weakly prime, because it can be changed into another prime (961151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480578 + 480579.

It is an arithmetic number, because the mean of its divisors is an integer number (480579).

2⁹⁶¹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

961157 is a deficient number, since it is larger than the sum of its proper divisors (1).

961157 is an equidigital number, since it uses as much as digits as its factorization.

961157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 961157 is about 980.3861484130. The cubic root of 961157 is about 98.6880977207.

The spelling of 961157 in words is "nine hundred sixty-one thousand, one hundred fifty-seven".