15941139 has 8 divisors (see below), whose sum is σ = 22179072. Its totient is φ = 10165320.

The previous prime is 15941137. The next prime is 15941143. The reversal of 15941139 is 93114951.

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

It is not a de Polignac number, because 15941139 - 2¹ = 15941137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15941137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115447 + ... + 115584.

It is an arithmetic number, because the mean of its divisors is an integer number (2772384).

Almost surely, 2^15941139 is an apocalyptic number.

15941139 is a deficient number, since it is larger than the sum of its proper divisors (6237933).

15941139 is a wasteful number, since it uses less digits than its factorization.

15941139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231057.

The product of its digits is 4860, while the sum is 33.

The square root of 15941139 is about 3992.6355956937. The cubic root of 15941139 is about 251.6748293967.

The spelling of 15941139 in words is "fifteen million, nine hundred forty-one thousand, one hundred thirty-nine".