115748621 has 2 divisors, whose sum is σ = 115748622. Its totient is φ = 115748620.

The previous prime is 115748603. The next prime is 115748651. The reversal of 115748621 is 126847511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115326121 + 422500 = 10739^2 + 650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115748621 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 (115748651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57874310 + 57874311.

It is an arithmetic number, because the mean of its divisors is an integer number (57874311).

Almost surely, 2^115748621 is an apocalyptic number.

It is an amenable number.

115748621 is a deficient number, since it is larger than the sum of its proper divisors (1).

115748621 is an equidigital number, since it uses as much as digits as its factorization.

115748621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 115748621 is about 10758.6533079192. The cubic root of 115748621 is about 487.3473496197.

The spelling of 115748621 in words is "one hundred fifteen million, seven hundred forty-eight thousand, six hundred twenty-one".