11992901 has 2 divisors, whose sum is σ = 11992902. Its totient is φ = 11992900.

The previous prime is 11992891. The next prime is 11992909. The reversal of 11992901 is 10929911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 1560001 = 3230^2 + 1249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11992901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11992909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5996450 + 5996451.

It is an arithmetic number, because the mean of its divisors is an integer number (5996451).

Almost surely, 2^11992901 is an apocalyptic number.

It is an amenable number.

11992901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11992901 is an equidigital number, since it uses as much as digits as its factorization.

11992901 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 32.

The square root of 11992901 is about 3463.0768111608. The cubic root of 11992901 is about 228.8976933473.

The spelling of 11992901 in words is "eleven million, nine hundred ninety-two thousand, nine hundred one".