11492981 has 2 divisors, whose sum is σ = 11492982. Its totient is φ = 11492980.

The previous prime is 11492963. The next prime is 11492989. The reversal of 11492981 is 18929411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7612081 + 3880900 = 2759^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 11492981 - 2⁶ = 11492917 is a prime.

It is a super-2 number, since 2×11492981² = 264177224532722, which contains 22 as substring.

It is a Chen prime.

It is equal to p₇₅₆₈₄₅ and since 11492981 and 756845 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11492989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5746490 + 5746491.

It is an arithmetic number, because the mean of its divisors is an integer number (5746491).

Almost surely, 2^11492981 is an apocalyptic number.

It is an amenable number.

11492981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11492981 is an equidigital number, since it uses as much as digits as its factorization.

11492981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 35.

The square root of 11492981 is about 3390.1299385127. The cubic root of 11492981 is about 225.6719402903.

The spelling of 11492981 in words is "eleven million, four hundred ninety-two thousand, nine hundred eighty-one".