113772977 has 2 divisors, whose sum is σ = 113772978. Its totient is φ = 113772976.

The previous prime is 113772943. The next prime is 113772979. The reversal of 113772977 is 779277311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73119601 + 40653376 = 8551^2 + 6376^2 .

It is a cyclic number.

It is not a de Polignac number, because 113772977 - 2¹⁴ = 113756593 is a prime.

Together with 113772979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113772979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56886488 + 56886489.

It is an arithmetic number, because the mean of its divisors is an integer number (56886489).

Almost surely, 2^113772977 is an apocalyptic number.

It is an amenable number.

113772977 is a deficient number, since it is larger than the sum of its proper divisors (1).

113772977 is an equidigital number, since it uses as much as digits as its factorization.

113772977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129654, while the sum is 44.

The square root of 113772977 is about 10666.4416278345. The cubic root of 113772977 is about 484.5586760197.

The spelling of 113772977 in words is "one hundred thirteen million, seven hundred seventy-two thousand, nine hundred seventy-seven".