111538153 has 2 divisors, whose sum is σ = 111538154. Its totient is φ = 111538152.

The previous prime is 111538127. The next prime is 111538159. The reversal of 111538153 is 351835111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85599504 + 25938649 = 9252^2 + 5093^2 .

It is a cyclic number.

It is not a de Polignac number, because 111538153 - 2⁵ = 111538121 is a prime.

It is not a weakly prime, because it can be changed into another prime (111538159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55769076 + 55769077.

It is an arithmetic number, because the mean of its divisors is an integer number (55769077).

Almost surely, 2^111538153 is an apocalyptic number.

It is an amenable number.

111538153 is a deficient number, since it is larger than the sum of its proper divisors (1).

111538153 is an equidigital number, since it uses as much as digits as its factorization.

111538153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 28.

The square root of 111538153 is about 10561.1624833633. The cubic root of 111538153 is about 481.3649703838.

It can be divided in two parts, 11153 and 8153, that added together give a triangular number (19306 = T₁₉₆).

The spelling of 111538153 in words is "one hundred eleven million, five hundred thirty-eight thousand, one hundred fifty-three".