111240153 has 12 divisors (see below), whose sum is σ = 161263908. Its totient is φ = 73890720.

The previous prime is 111240139. The next prime is 111240161. The reversal of 111240153 is 351042111.

It can be written as a sum of positive squares in 2 ways, for example, as 73822464 + 37417689 = 8592^2 + 6117^2 .

It is not a de Polignac number, because 111240153 - 2¹³ = 111231961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111240113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19818 + ... + 24803.

It is an arithmetic number, because the mean of its divisors is an integer number (13438659).

Almost surely, 2^111240153 is an apocalyptic number.

It is an amenable number.

111240153 is a deficient number, since it is larger than the sum of its proper divisors (50023755).

111240153 is a wasteful number, since it uses less digits than its factorization.

111240153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44904 (or 44901 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 111240153 is about 10547.0447519673. The cubic root of 111240153 is about 480.9358953762.

Adding to 111240153 its reverse (351042111), we get a palindrome (462282264).

The spelling of 111240153 in words is "one hundred eleven million, two hundred forty thousand, one hundred fifty-three".