115151123 has 4 divisors (see below), whose sum is σ = 115172688. Its totient is φ = 115129560.

The previous prime is 115151117. The next prime is 115151159. The reversal of 115151123 is 321151511.

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: 321151511 = 79 ⋅4065209.

It is a cyclic number.

It is not a de Polignac number, because 115151123 - 2⁶ = 115151059 is a prime.

It is a super-2 number, since 2×115151123² = 26519562256322258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115151095 and 115151104.

It is not an unprimeable number, because it can be changed into a prime (115151173) 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, 3818 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (28793172).

Almost surely, 2^115151123 is an apocalyptic number.

115151123 is a deficient number, since it is larger than the sum of its proper divisors (21565).

115151123 is an equidigital number, since it uses as much as digits as its factorization.

115151123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564.

The product of its digits is 150, while the sum is 20.

The square root of 115151123 is about 10730.8491276320. The cubic root of 115151123 is about 486.5073351459.

The spelling of 115151123 in words is "one hundred fifteen million, one hundred fifty-one thousand, one hundred twenty-three".