15140389 has 8 divisors (see below), whose sum is σ = 16563168. Its totient is φ = 13725360.

The previous prime is 15140381. The next prime is 15140449. The reversal of 15140389 is 98304151.

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

It is not a de Polignac number, because 15140389 - 2³ = 15140381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15140389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140381) 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 in 7 ways as a sum of consecutive naturals, for example, 2634 + ... + 6100.

It is an arithmetic number, because the mean of its divisors is an integer number (2070396).

Almost surely, 2^15140389 is an apocalyptic number.

It is an amenable number.

15140389 is a deficient number, since it is larger than the sum of its proper divisors (1422779).

15140389 is a wasteful number, since it uses less digits than its factorization.

15140389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 15140389 is about 3891.0652783010. The cubic root of 15140389 is about 247.3882173851.

The spelling of 15140389 in words is "fifteen million, one hundred forty thousand, three hundred eighty-nine".