15042389 has 8 divisors (see below), whose sum is σ = 15451392. Its totient is φ = 14636160.

The previous prime is 15042383. The next prime is 15042403. The reversal of 15042389 is 98324051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15042389 - 2⁴ = 15042373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15042383) 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 in 7 ways as a sum of consecutive naturals, for example, 14684 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (1931424).

Almost surely, 2^15042389 is an apocalyptic number.

It is an amenable number.

15042389 is a deficient number, since it is larger than the sum of its proper divisors (409003).

15042389 is an equidigital number, since it uses as much as digits as its factorization.

15042389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 15042389 is about 3878.4518818725. The cubic root of 15042389 is about 246.8533006404.

The spelling of 15042389 in words is "fifteen million, forty-two thousand, three hundred eighty-nine".