113509787 has 2 divisors, whose sum is σ = 113509788. Its totient is φ = 113509786.

The previous prime is 113509769. The next prime is 113509789. The reversal of 113509787 is 787905311.

It is a strong prime.

It is an emirp because it is prime and its reverse (787905311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113509787 - 2¹⁸ = 113247643 is a prime.

Together with 113509789, 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 (113509789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56754893 + 56754894.

It is an arithmetic number, because the mean of its divisors is an integer number (56754894).

Almost surely, 2^113509787 is an apocalyptic number.

113509787 is a deficient number, since it is larger than the sum of its proper divisors (1).

113509787 is an equidigital number, since it uses as much as digits as its factorization.

113509787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 113509787 is about 10654.0971930990. The cubic root of 113509787 is about 484.1847457987.

The spelling of 113509787 in words is "one hundred thirteen million, five hundred nine thousand, seven hundred eighty-seven".