111274641 has 10 divisors (see below), whose sum is σ = 166225202. Its totient is φ = 74183040.

The previous prime is 111274627. The next prime is 111274727. The reversal of 111274641 is 146472111.

111274641 is a `hidden beast` number, since 1 + 1 + 12 + 7 + 4 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 106007616 + 5267025 = 10296^2 + 2295^2 .

It is not a de Polignac number, because 111274641 - 2⁵ = 111274609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111274601) 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 9 ways as a sum of consecutive naturals, for example, 686800 + ... + 686961.

Almost surely, 2^111274641 is an apocalyptic number.

It is an amenable number.

111274641 is a deficient number, since it is larger than the sum of its proper divisors (54950561).

111274641 is an equidigital number, since it uses as much as digits as its factorization.

111274641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373773 (or 1373764 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 111274641 is about 10548.6795856164. The cubic root of 111274641 is about 480.9855920696.

The spelling of 111274641 in words is "one hundred eleven million, two hundred seventy-four thousand, six hundred forty-one".