113145513 has 64 divisors (see below), whose sum is σ = 180956160. Its totient is φ = 62270208.

The previous prime is 113145511. The next prime is 113145521. The reversal of 113145513 is 315541311.

It is not a de Polignac number, because 113145513 - 2¹ = 113145511 is a prime.

It is a super-2 number, since 2×113145513² = 25603814224066338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113145511) 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 63 ways as a sum of consecutive naturals, for example, 1688706 + ... + 1688772.

It is an arithmetic number, because the mean of its divisors is an integer number (2827440).

Almost surely, 2^113145513 is an apocalyptic number.

113145513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113145513 is a deficient number, since it is larger than the sum of its proper divisors (67810647).

113145513 is a wasteful number, since it uses less digits than its factorization.

113145513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its digits is 900, while the sum is 24.

The square root of 113145513 is about 10636.9879665251. The cubic root of 113145513 is about 483.6662444717. Note that the first 3 decimals are identical.

Adding to 113145513 its reverse (315541311), we get a palindrome (428686824).

It can be divided in two parts, 11 and 3145513, that multiplied together give a palindrome (34600643).

The spelling of 113145513 in words is "one hundred thirteen million, one hundred forty-five thousand, five hundred thirteen".