111545413 has 12 divisors (see below), whose sum is σ = 130484172. Its totient is φ = 95074560.

The previous prime is 111545411. The next prime is 111545503. The reversal of 111545413 is 314545111.

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 65820769 = 6762^2 + 8113^2 .

It is not a de Polignac number, because 111545413 - 2¹ = 111545411 is a prime.

It is a super-2 number, since 2×111545413² = 24884758322681138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111545411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2581 + ... + 15157.

It is an arithmetic number, because the mean of its divisors is an integer number (10873681).

Almost surely, 2^111545413 is an apocalyptic number.

It is an amenable number.

111545413 is a deficient number, since it is larger than the sum of its proper divisors (18938759).

111545413 is a wasteful number, since it uses less digits than its factorization.

111545413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12772 (or 12765 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 111545413 is about 10561.5061899333. The cubic root of 111545413 is about 481.3754141461.

The spelling of 111545413 in words is "one hundred eleven million, five hundred forty-five thousand, four hundred thirteen".