15020081 has 8 divisors (see below), whose sum is σ = 15716160. Its totient is φ = 14327632.

The previous prime is 15020077. The next prime is 15020087. The reversal of 15020081 is 18002051.

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 15020081 - 2² = 15020077 is a prime.

It is a super-2 number, since 2×15020081² = 451205666493122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15020087) 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, 11066 + ... + 12348.

It is an arithmetic number, because the mean of its divisors is an integer number (1964520).

Almost surely, 2^15020081 is an apocalyptic number.

It is an amenable number.

15020081 is a deficient number, since it is larger than the sum of its proper divisors (696079).

15020081 is a wasteful number, since it uses less digits than its factorization.

15020081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 15020081 is about 3875.5749250918. The cubic root of 15020081 is about 246.7312117025.

The spelling of 15020081 in words is "fifteen million, twenty thousand, eighty-one".