115511351 has 4 divisors (see below), whose sum is σ = 116973600. Its totient is φ = 114049104.

The previous prime is 115511339. The next prime is 115511399. The reversal of 115511351 is 153115511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153115511 = 89 ⋅1720399.

It is a cyclic number.

It is not a de Polignac number, because 115511351 - 2¹⁸ = 115249207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115511251) 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, 731006 + ... + 731163.

It is an arithmetic number, because the mean of its divisors is an integer number (29243400).

Almost surely, 2^115511351 is an apocalyptic number.

115511351 is a deficient number, since it is larger than the sum of its proper divisors (1462249).

115511351 is an equidigital number, since it uses as much as digits as its factorization.

115511351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462248.

The product of its digits is 375, while the sum is 23.

The square root of 115511351 is about 10747.6207134416. The cubic root of 115511351 is about 487.0141217284.

Adding to 115511351 its reverse (153115511), we get a palindrome (268626862).

The spelling of 115511351 in words is "one hundred fifteen million, five hundred eleven thousand, three hundred fifty-one".