15122869 has 2 divisors, whose sum is σ = 15122870. Its totient is φ = 15122868.

The previous prime is 15122867. The next prime is 15122897. The reversal of 15122869 is 96822151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14152644 + 970225 = 3762^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 15122869 - 2¹ = 15122867 is a prime.

It is a super-2 number, since 2×15122869² = 457402333582322, which contains 22 as substring.

Together with 15122867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15122867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561434 + 7561435.

It is an arithmetic number, because the mean of its divisors is an integer number (7561435).

Almost surely, 2^15122869 is an apocalyptic number.

It is an amenable number.

15122869 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122869 is an equidigital number, since it uses as much as digits as its factorization.

15122869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 15122869 is about 3888.8133151387. The cubic root of 15122869 is about 247.2927571681.

The spelling of 15122869 in words is "fifteen million, one hundred twenty-two thousand, eight hundred sixty-nine".