115501541 has 2 divisors, whose sum is σ = 115501542. Its totient is φ = 115501540.

The previous prime is 115501433. The next prime is 115501543. The reversal of 115501541 is 145105511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66080641 + 49420900 = 8129^2 + 7030^2 .

It is a cyclic number.

It is not a de Polignac number, because 115501541 - 2²² = 111307237 is a prime.

Together with 115501543, 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 (115501543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57750770 + 57750771.

It is an arithmetic number, because the mean of its divisors is an integer number (57750771).

Almost surely, 2^115501541 is an apocalyptic number.

It is an amenable number.

115501541 is a deficient number, since it is larger than the sum of its proper divisors (1).

115501541 is an equidigital number, since it uses as much as digits as its factorization.

115501541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 115501541 is about 10747.1643236716. The cubic root of 115501541 is about 487.0003345010. Note that the first 3 decimals are identical.

The spelling of 115501541 in words is "one hundred fifteen million, five hundred one thousand, five hundred forty-one".