113238487 has 4 divisors (see below), whose sum is σ = 113864296. Its totient is φ = 112612680.

The previous prime is 113238481. The next prime is 113238491. The reversal of 113238487 is 784832311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113238487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113238481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312633 + ... + 312994.

It is an arithmetic number, because the mean of its divisors is an integer number (28466074).

Almost surely, 2^113238487 is an apocalyptic number.

113238487 is a deficient number, since it is larger than the sum of its proper divisors (625809).

113238487 is an equidigital number, since it uses as much as digits as its factorization.

113238487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625808.

The product of its digits is 32256, while the sum is 37.

The square root of 113238487 is about 10641.3573852211. The cubic root of 113238487 is about 483.7986877084.

The spelling of 113238487 in words is "one hundred thirteen million, two hundred thirty-eight thousand, four hundred eighty-seven".