15140390 has 8 divisors (see below), whose sum is σ = 27252720. Its totient is φ = 6056152.

The previous prime is 15140381. The next prime is 15140449. The reversal of 15140390 is 9304151.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 757010 + ... + 757029.

It is an arithmetic number, because the mean of its divisors is an integer number (3406590).

Almost surely, 2^15140390 is an apocalyptic number.

15140390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15140390 is a deficient number, since it is larger than the sum of its proper divisors (12112330).

15140390 is a wasteful number, since it uses less digits than its factorization.

15140390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514046.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 15140390 is about 3891.0654068006. The cubic root of 15140390 is about 247.3882228317.

The spelling of 15140390 in words is "fifteen million, one hundred forty thousand, three hundred ninety".