113438427 has 4 divisors (see below), whose sum is σ = 151251240. Its totient is φ = 75625616.

The previous prime is 113438419. The next prime is 113438443. The reversal of 113438427 is 724834311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724834311 = 3 ⋅241611437.

It is a cyclic number.

It is not a de Polignac number, because 113438427 - 2³ = 113438419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113438407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18906402 + ... + 18906407.

It is an arithmetic number, because the mean of its divisors is an integer number (37812810).

Almost surely, 2^113438427 is an apocalyptic number.

113438427 is a deficient number, since it is larger than the sum of its proper divisors (37812813).

113438427 is an equidigital number, since it uses as much as digits as its factorization.

113438427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37812812.

The product of its digits is 16128, while the sum is 33.

The square root of 113438427 is about 10650.7477202307. The cubic root of 113438427 is about 484.0832606688.

The spelling of 113438427 in words is "one hundred thirteen million, four hundred thirty-eight thousand, four hundred twenty-seven".