113811406 has 32 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 51042816.

The previous prime is 113811403. The next prime is 113811427. The reversal of 113811406 is 604118311.

It is a happy number.

It is a super-2 number, since 2×113811406² = 25906072271393672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113811403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92910 + ... + 94126.

It is an arithmetic number, because the mean of its divisors is an integer number (5919480).

Almost surely, 2^113811406 is an apocalyptic number.

113811406 is a deficient number, since it is larger than the sum of its proper divisors (75611954).

113811406 is a wasteful number, since it uses less digits than its factorization.

113811406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 113811406 is about 10668.2428731258. The cubic root of 113811406 is about 484.6132261999.

Adding to 113811406 its reverse (604118311), we get a palindrome (717929717).

It can be divided in two parts, 1138 and 11406, that added together give a square (12544 = 112²).

The spelling of 113811406 in words is "one hundred thirteen million, eight hundred eleven thousand, four hundred six".