113206249 has 4 divisors (see below), whose sum is σ = 121914436. Its totient is φ = 104498064.

The previous prime is 113206243. The next prime is 113206267. The reversal of 113206249 is 942602311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942602311 = 7 ⋅134657473.

It can be written as a sum of positive squares in 2 ways, for example, as 56475225 + 56731024 = 7515^2 + 7532^2 .

It is a cyclic number.

It is not a de Polignac number, because 113206249 - 2³ = 113206241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113206241) 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, 4354074 + ... + 4354099.

It is an arithmetic number, because the mean of its divisors is an integer number (30478609).

Almost surely, 2^113206249 is an apocalyptic number.

It is an amenable number.

113206249 is a deficient number, since it is larger than the sum of its proper divisors (8708187).

113206249 is an equidigital number, since it uses as much as digits as its factorization.

113206249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8708186.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 113206249 is about 10639.8425270302. The cubic root of 113206249 is about 483.7527722757.

The spelling of 113206249 in words is "one hundred thirteen million, two hundred six thousand, two hundred forty-nine".