15143239 has 2 divisors, whose sum is σ = 15143240. Its totient is φ = 15143238.

The previous prime is 15143203. The next prime is 15143257. The reversal of 15143239 is 93234151.

15143239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15143239 - 2¹³ = 15135047 is a prime.

It is a super-2 number, since 2×15143239² = 458635374822242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15143299) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571619 + 7571620.

It is an arithmetic number, because the mean of its divisors is an integer number (7571620).

Almost surely, 2^15143239 is an apocalyptic number.

15143239 is a deficient number, since it is larger than the sum of its proper divisors (1).

15143239 is an equidigital number, since it uses as much as digits as its factorization.

15143239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 15143239 is about 3891.4314846853. The cubic root of 15143239 is about 247.4037390512.

It can be divided in two parts, 1514 and 3239, that added together give a triangular number (4753 = T₉₇).

The spelling of 15143239 in words is "fifteen million, one hundred forty-three thousand, two hundred thirty-nine".