15044081 has 4 divisors (see below), whose sum is σ = 16201332. Its totient is φ = 13886832.

The previous prime is 15044053. The next prime is 15044087. The reversal of 15044081 is 18044051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4906225 + 10137856 = 2215^2 + 3184^2 .

It is a cyclic number.

It is not a de Polignac number, because 15044081 - 2¹⁰ = 15043057 is a prime.

It is a super-2 number, since 2×15044081² = 452648746269122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15044087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578606 + ... + 578631.

It is an arithmetic number, because the mean of its divisors is an integer number (4050333).

Almost surely, 2^15044081 is an apocalyptic number.

It is an amenable number.

15044081 is a deficient number, since it is larger than the sum of its proper divisors (1157251).

15044081 is a wasteful number, since it uses less digits than its factorization.

15044081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157250.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 15044081 is about 3878.6700040091. The cubic root of 15044081 is about 246.8625558220.

The spelling of 15044081 in words is "fifteen million, forty-four thousand, eighty-one".