101379961 has 2 divisors, whose sum is σ = 101379962. Its totient is φ = 101379960.

The previous prime is 101379917. The next prime is 101379979. The reversal of 101379961 is 169973101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70644025 + 30735936 = 8405^2 + 5544^2 .

It is a cyclic number.

It is not a de Polignac number, because 101379961 - 2⁷ = 101379833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101379961.

It is not a weakly prime, because it can be changed into another prime (101379361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50689980 + 50689981.

It is an arithmetic number, because the mean of its divisors is an integer number (50689981).

Almost surely, 2^101379961 is an apocalyptic number.

It is an amenable number.

101379961 is a deficient number, since it is larger than the sum of its proper divisors (1).

101379961 is an equidigital number, since it uses as much as digits as its factorization.

101379961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 101379961 is about 10068.7616418306. The cubic root of 101379961 is about 466.2842074441.

The spelling of 101379961 in words is "one hundred one million, three hundred seventy-nine thousand, nine hundred sixty-one".