115212269 has 2 divisors, whose sum is σ = 115212270. Its totient is φ = 115212268.

The previous prime is 115212233. The next prime is 115212271. The reversal of 115212269 is 962212511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71149225 + 44063044 = 8435^2 + 6638^2 .

It is a cyclic number.

It is not a de Polignac number, because 115212269 - 2²⁴ = 98435053 is a prime.

It is a super-2 number, since 2×115212269² = 26547733856256722, which contains 22 as substring.

Together with 115212271, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6584123 and since 115212269 and 6584123 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115212289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57606134 + 57606135.

It is an arithmetic number, because the mean of its divisors is an integer number (57606135).

Almost surely, 2^115212269 is an apocalyptic number.

It is an amenable number.

115212269 is a deficient number, since it is larger than the sum of its proper divisors (1).

115212269 is an equidigital number, since it uses as much as digits as its factorization.

115212269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 115212269 is about 10733.6978250741. The cubic root of 115212269 is about 486.5934327679.

The spelling of 115212269 in words is "one hundred fifteen million, two hundred twelve thousand, two hundred sixty-nine".