15142691 has 2 divisors, whose sum is σ = 15142692. Its totient is φ = 15142690.

The previous prime is 15142679. The next prime is 15142693. The reversal of 15142691 is 19624151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15142691 - 2¹⁰ = 15141667 is a prime.

Together with 15142693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15142693) 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, 7571345 + 7571346.

It is an arithmetic number, because the mean of its divisors is an integer number (7571346).

Almost surely, 2^15142691 is an apocalyptic number.

15142691 is a deficient number, since it is larger than the sum of its proper divisors (1).

15142691 is an equidigital number, since it uses as much as digits as its factorization.

15142691 is an odious number, because the sum of its binary digits is odd.

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

The square root of 15142691 is about 3891.3610729409. The cubic root of 15142691 is about 247.4007546856.

The spelling of 15142691 in words is "fifteen million, one hundred forty-two thousand, six hundred ninety-one".