115519247 has 2 divisors, whose sum is σ = 115519248. Its totient is φ = 115519246.

The previous prime is 115519213. The next prime is 115519273. The reversal of 115519247 is 742915511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115519247 - 2²² = 111324943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115515247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57759623 + 57759624.

It is an arithmetic number, because the mean of its divisors is an integer number (57759624).

Almost surely, 2^115519247 is an apocalyptic number.

115519247 is a deficient number, since it is larger than the sum of its proper divisors (1).

115519247 is an equidigital number, since it uses as much as digits as its factorization.

115519247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 115519247 is about 10747.9880442807. The cubic root of 115519247 is about 487.0252184038.

It can be divided in two parts, 1155 and 19247, that added together give a palindrome (20402).

The spelling of 115519247 in words is "one hundred fifteen million, five hundred nineteen thousand, two hundred forty-seven".