115031549 has 2 divisors, whose sum is σ = 115031550. Its totient is φ = 115031548.

The previous prime is 115031519. The next prime is 115031551. The reversal of 115031549 is 945130511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114875524 + 156025 = 10718^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 115031549 - 2¹⁶ = 114966013 is a prime.

Together with 115031551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115031519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57515774 + 57515775.

It is an arithmetic number, because the mean of its divisors is an integer number (57515775).

Almost surely, 2^115031549 is an apocalyptic number.

It is an amenable number.

115031549 is a deficient number, since it is larger than the sum of its proper divisors (1).

115031549 is an equidigital number, since it uses as much as digits as its factorization.

115031549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 115031549 is about 10725.2761736004. The cubic root of 115031549 is about 486.3388789056.

The spelling of 115031549 in words is "one hundred fifteen million, thirty-one thousand, five hundred forty-nine".