113512990 has 16 divisors (see below), whose sum is σ = 208671552. Its totient is φ = 44438944.

The previous prime is 113512951. The next prime is 113512999. The reversal of 113512990 is 99215311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113512999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120289 + ... + 121228.

It is an arithmetic number, because the mean of its divisors is an integer number (13041972).

Almost surely, 2^113512990 is an apocalyptic number.

113512990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113512990 is a deficient number, since it is larger than the sum of its proper divisors (95158562).

113512990 is a wasteful number, since it uses less digits than its factorization.

113512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241571.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 113512990 is about 10654.2475097963. The cubic root of 113512990 is about 484.1892999703.

It can be divided in two parts, 11351 and 2990, that added together give a palindrome (14341).

The spelling of 113512990 in words is "one hundred thirteen million, five hundred twelve thousand, nine hundred ninety".