111434153 has 4 divisors (see below), whose sum is σ = 115276740. Its totient is φ = 107591568.

The previous prime is 111434137. The next prime is 111434173. The reversal of 111434153 is 351434111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351434111 = 7 ⋅50204873.

It can be written as a sum of positive squares in 2 ways, for example, as 83850649 + 27583504 = 9157^2 + 5252^2 .

It is a cyclic number.

It is not a de Polignac number, because 111434153 - 2⁴ = 111434137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111434173) 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 3 ways as a sum of consecutive naturals, for example, 1921250 + ... + 1921307.

It is an arithmetic number, because the mean of its divisors is an integer number (28819185).

Almost surely, 2^111434153 is an apocalyptic number.

It is an amenable number.

111434153 is a deficient number, since it is larger than the sum of its proper divisors (3842587).

111434153 is an equidigital number, since it uses as much as digits as its factorization.

111434153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842586.

The product of its digits is 720, while the sum is 23.

The square root of 111434153 is about 10556.2376346878. The cubic root of 111434153 is about 481.2153130000.

Adding to 111434153 its reverse (351434111), we get a palindrome (462868264).

The spelling of 111434153 in words is "one hundred eleven million, four hundred thirty-four thousand, one hundred fifty-three".