113642644 has 6 divisors (see below), whose sum is σ = 198874634. Its totient is φ = 56821320.

The previous prime is 113642623. The next prime is 113642689. The reversal of 113642644 is 446246311.

It can be written as a sum of positive squares in only one way, i.e., 92390544 + 21252100 = 9612^2 + 4610^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14205327 + ... + 14205334.

Almost surely, 2^113642644 is an apocalyptic number.

It is an amenable number.

113642644 is a deficient number, since it is larger than the sum of its proper divisors (85231990).

113642644 is a wasteful number, since it uses less digits than its factorization.

113642644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28410665 (or 28410663 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 113642644 is about 10660.3303888763. The cubic root of 113642644 is about 484.3735760707.

Adding to 113642644 its reverse (446246311), we get a palindrome (559888955).

The spelling of 113642644 in words is "one hundred thirteen million, six hundred forty-two thousand, six hundred forty-four".