113777551 has 2 divisors, whose sum is σ = 113777552. Its totient is φ = 113777550.

The previous prime is 113777539. The next prime is 113777557. The reversal of 113777551 is 155777311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113777551 - 2⁵ = 113777519 is a prime.

It is a super-2 number, since 2×113777551² = 25890662223115202, which contains 22 as substring.

It is equal to p_6506893 and since 113777551 and 6506893 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113777551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113777557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56888775 + 56888776.

It is an arithmetic number, because the mean of its divisors is an integer number (56888776).

Almost surely, 2^113777551 is an apocalyptic number.

113777551 is a deficient number, since it is larger than the sum of its proper divisors (1).

113777551 is an equidigital number, since it uses as much as digits as its factorization.

113777551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25725, while the sum is 37.

The square root of 113777551 is about 10666.6560364530. The cubic root of 113777551 is about 484.5651694822.

The spelling of 113777551 in words is "one hundred thirteen million, seven hundred seventy-seven thousand, five hundred fifty-one".