15148985 has 8 divisors (see below), whose sum is σ = 19135680. Its totient is φ = 11481264.

The previous prime is 15148981. The next prime is 15148999. The reversal of 15148985 is 58984151.

15148985 = T₁₇₃ + T₁₇₄ + ... + T₄₅₇.

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 15148985 - 2² = 15148981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15148981) 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, 79637 + ... + 79826.

It is an arithmetic number, because the mean of its divisors is an integer number (2391960).

Almost surely, 2^15148985 is an apocalyptic number.

It is an amenable number.

15148985 is a deficient number, since it is larger than the sum of its proper divisors (3986695).

15148985 is a wasteful number, since it uses less digits than its factorization.

15148985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159487.

The product of its digits is 57600, while the sum is 41.

The square root of 15148985 is about 3892.1697033917. The cubic root of 15148985 is about 247.4350269881.

The spelling of 15148985 in words is "fifteen million, one hundred forty-eight thousand, nine hundred eighty-five".