113509378 has 4 divisors (see below), whose sum is σ = 170264070. Its totient is φ = 56754688.

The previous prime is 113509373. The next prime is 113509381. The reversal of 113509378 is 873905311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113145769 + 363609 = 10637^2 + 603^2 .

It is not an unprimeable number, because it can be changed into a prime (113509373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28377343 + ... + 28377346.

Almost surely, 2^113509378 is an apocalyptic number.

113509378 is a deficient number, since it is larger than the sum of its proper divisors (56754692).

113509378 is an equidigital number, since it uses as much as digits as its factorization.

113509378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56754691.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 113509378 is about 10654.0779985881. The cubic root of 113509378 is about 484.1841642577.

The spelling of 113509378 in words is "one hundred thirteen million, five hundred nine thousand, three hundred seventy-eight".