15980345 has 8 divisors (see below), whose sum is σ = 19795200. Its totient is φ = 12371760.

The previous prime is 15980333. The next prime is 15980383. The reversal of 15980345 is 54308951.

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

It is not a de Polignac number, because 15980345 - 2⁸ = 15980089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51395 + ... + 51704.

It is an arithmetic number, because the mean of its divisors is an integer number (2474400).

Almost surely, 2^15980345 is an apocalyptic number.

It is an amenable number.

15980345 is a deficient number, since it is larger than the sum of its proper divisors (3814855).

15980345 is a wasteful number, since it uses less digits than its factorization.

15980345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103135.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 15980345 is about 3997.5423700069. The cubic root of 15980345 is about 251.8809854148.

The spelling of 15980345 in words is "fifteen million, nine hundred eighty thousand, three hundred forty-five".