113551807 has 4 divisors (see below), whose sum is σ = 114827760. Its totient is φ = 112275856.

The previous prime is 113551799. The next prime is 113551861. The reversal of 113551807 is 708155311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708155311 = 25111 ⋅28201.

It is a cyclic number.

It is not a de Polignac number, because 113551807 - 2³ = 113551799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113551307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637843 + ... + 638020.

It is an arithmetic number, because the mean of its divisors is an integer number (28706940).

Almost surely, 2^113551807 is an apocalyptic number.

113551807 is a deficient number, since it is larger than the sum of its proper divisors (1275953).

113551807 is an equidigital number, since it uses as much as digits as its factorization.

113551807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275952.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 113551807 is about 10656.0690219236. The cubic root of 113551807 is about 484.2444849440.

The spelling of 113551807 in words is "one hundred thirteen million, five hundred fifty-one thousand, eight hundred seven".