101913961 has 2 divisors, whose sum is σ = 101913962. Its totient is φ = 101913960.

The previous prime is 101913953. The next prime is 101913979. The reversal of 101913961 is 169319101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77352025 + 24561936 = 8795^2 + 4956^2 .

It is a cyclic number.

It is not a de Polignac number, because 101913961 - 2³ = 101913953 is a prime.

It is not a weakly prime, because it can be changed into another prime (101913941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50956980 + 50956981.

It is an arithmetic number, because the mean of its divisors is an integer number (50956981).

Almost surely, 2^101913961 is an apocalyptic number.

It is an amenable number.

101913961 is a deficient number, since it is larger than the sum of its proper divisors (1).

101913961 is an equidigital number, since it uses as much as digits as its factorization.

101913961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 101913961 is about 10095.2444745038. The cubic root of 101913961 is about 467.1014625163.

The spelling of 101913961 in words is "one hundred one million, nine hundred thirteen thousand, nine hundred sixty-one".