113273019 has 8 divisors (see below), whose sum is σ = 167811920. Its totient is φ = 75515328.

The previous prime is 113272987. The next prime is 113273047. The reversal of 113273019 is 910372311.

It is not a de Polignac number, because 113273019 - 2⁵ = 113272987 is a prime.

It is a super-2 number, since 2×113273019² = 25661553666748722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4195297 = 113273019 / (1 + 1 + 3 + 2 + 7 + 3 + 0 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113272983 and 113273001.

It is not an unprimeable number, because it can be changed into a prime (113273219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097622 + ... + 2097675.

It is an arithmetic number, because the mean of its divisors is an integer number (20976490).

Almost surely, 2^113273019 is an apocalyptic number.

113273019 is a deficient number, since it is larger than the sum of its proper divisors (54538901).

113273019 is an equidigital number, since it uses as much as digits as its factorization.

113273019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195306 (or 4195300 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 113273019 is about 10642.9797989097. The cubic root of 113273019 is about 483.8478607378.

The spelling of 113273019 in words is "one hundred thirteen million, two hundred seventy-three thousand, nineteen".