15042081 has 8 divisors (see below), whose sum is σ = 20263264. Its totient is φ = 9924480.

The previous prime is 15042077. The next prime is 15042101. The reversal of 15042081 is 18024051.

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

It is not a de Polignac number, because 15042081 - 2² = 15042077 is a prime.

It is a super-2 number, since 2×15042081² = 452528401621122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15042011) 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, 25555 + ... + 26136.

It is an arithmetic number, because the mean of its divisors is an integer number (2532908).

Almost surely, 2^15042081 is an apocalyptic number.

It is an amenable number.

15042081 is a deficient number, since it is larger than the sum of its proper divisors (5221183).

15042081 is an equidigital number, since it uses as much as digits as its factorization.

15042081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51791.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 15042081 is about 3878.4121751047. The cubic root of 15042081 is about 246.8516158164.

The spelling of 15042081 in words is "fifteen million, forty-two thousand, eighty-one".