115151213 has 2 divisors, whose sum is σ = 115151214. Its totient is φ = 115151212.

The previous prime is 115151189. The next prime is 115151233. The reversal of 115151213 is 312151511.

It is a happy number.

It is an a-pointer prime, because the next prime (115151233) can be obtained adding 115151213 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109453444 + 5697769 = 10462^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 115151213 - 2¹² = 115147117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115151233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57575606 + 57575607.

It is an arithmetic number, because the mean of its divisors is an integer number (57575607).

Almost surely, 2^115151213 is an apocalyptic number.

It is an amenable number.

115151213 is a deficient number, since it is larger than the sum of its proper divisors (1).

115151213 is an equidigital number, since it uses as much as digits as its factorization.

115151213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150, while the sum is 20.

The square root of 115151213 is about 10730.8533211483. The cubic root of 115151213 is about 486.5074618942.

The spelling of 115151213 in words is "one hundred fifteen million, one hundred fifty-one thousand, two hundred thirteen".