961515101 has 2 divisors, whose sum is σ = 961515102. Its totient is φ = 961515100.

The previous prime is 961515089. The next prime is 961515133. The reversal of 961515101 is 101515169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586899076 + 374616025 = 24226^2 + 19355^2 .

It is a cyclic number.

It is not a de Polignac number, because 961515101 - 2²⁶ = 894406237 is a prime.

It is a super-2 number, since 2×961515101² = 1849022578902080402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961515151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480757550 + 480757551.

It is an arithmetic number, because the mean of its divisors is an integer number (480757551).

Almost surely, 2^961515101 is an apocalyptic number.

It is an amenable number.

961515101 is a deficient number, since it is larger than the sum of its proper divisors (1).

961515101 is an equidigital number, since it uses as much as digits as its factorization.

961515101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 29.

The square root of 961515101 is about 31008.3069676498. The cubic root of 961515101 is about 987.0035236744.

The spelling of 961515101 in words is "nine hundred sixty-one million, five hundred fifteen thousand, one hundred one".