113772649 has 2 divisors, whose sum is σ = 113772650. Its totient is φ = 113772648.

The previous prime is 113772647. The next prime is 113772661. The reversal of 113772649 is 946277311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97515625 + 16257024 = 9875^2 + 4032^2 .

It is a cyclic number.

It is not a de Polignac number, because 113772649 - 2¹ = 113772647 is a prime.

Together with 113772647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113772641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56886324 + 56886325.

It is an arithmetic number, because the mean of its divisors is an integer number (56886325).

Almost surely, 2^113772649 is an apocalyptic number.

It is an amenable number.

113772649 is a deficient number, since it is larger than the sum of its proper divisors (1).

113772649 is an equidigital number, since it uses as much as digits as its factorization.

113772649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 113772649 is about 10666.4262524990. The cubic root of 113772649 is about 484.5582103690.

The spelling of 113772649 in words is "one hundred thirteen million, seven hundred seventy-two thousand, six hundred forty-nine".