115151261 has 2 divisors, whose sum is σ = 115151262. Its totient is φ = 115151260.

The previous prime is 115151249. The next prime is 115151273. The reversal of 115151261 is 162151511.

It is a balanced prime because it is at equal distance from previous prime (115151249) and next prime (115151273).

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 13645636 = 10075^2 + 3694^2 .

It is an emirp because it is prime and its reverse (162151511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115151261 - 2²² = 110956957 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 (115150261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57575630 + 57575631.

It is an arithmetic number, because the mean of its divisors is an integer number (57575631).

Almost surely, 2^115151261 is an apocalyptic number.

It is an amenable number.

115151261 is a deficient number, since it is larger than the sum of its proper divisors (1).

115151261 is an equidigital number, since it uses as much as digits as its factorization.

115151261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 23.

The square root of 115151261 is about 10730.8555576897. The cubic root of 115151261 is about 486.5075294933.

The spelling of 115151261 in words is "one hundred fifteen million, one hundred fifty-one thousand, two hundred sixty-one".