15142969 has 2 divisors, whose sum is σ = 15142970. Its totient is φ = 15142968.

The previous prime is 15142921. The next prime is 15142987. The reversal of 15142969 is 96924151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 3853369 = 3360^2 + 1963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15142969 is a prime.

It is a super-2 number, since 2×15142969² = 458619020269922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15142909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571484 + 7571485.

It is an arithmetic number, because the mean of its divisors is an integer number (7571485).

Almost surely, 2^15142969 is an apocalyptic number.

It is an amenable number.

15142969 is a deficient number, since it is larger than the sum of its proper divisors (1).

15142969 is an equidigital number, since it uses as much as digits as its factorization.

15142969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 15142969 is about 3891.3967929267. The cubic root of 15142969 is about 247.4022686611.

The spelling of 15142969 in words is "fifteen million, one hundred forty-two thousand, nine hundred sixty-nine".