113870019 has 4 divisors (see below), whose sum is σ = 151826696. Its totient is φ = 75913344.

The previous prime is 113869969. The next prime is 113870039. The reversal of 113870019 is 910078311.

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

It is not a de Polignac number, because 113870019 - 2¹³ = 113861827 is a prime.

It is a super-2 number, since 2×113870019² = 25932762454120722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113870039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18978334 + ... + 18978339.

It is an arithmetic number, because the mean of its divisors is an integer number (37956674).

Almost surely, 2^113870019 is an apocalyptic number.

113870019 is a deficient number, since it is larger than the sum of its proper divisors (37956677).

113870019 is an equidigital number, since it uses as much as digits as its factorization.

113870019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37956676.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 113870019 is about 10670.9895979708. The cubic root of 113870019 is about 484.6964040385.

The spelling of 113870019 in words is "one hundred thirteen million, eight hundred seventy thousand, nineteen".