15482981 has 8 divisors (see below), whose sum is σ = 16080384. Its totient is φ = 14891760.

The previous prime is 15482977. The next prime is 15482993. The reversal of 15482981 is 18928451.

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 15482981 - 2² = 15482977 is a prime.

It is a super-2 number, since 2×15482981² = 479445401292722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15482911) 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, 3920 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (2010048).

Almost surely, 2^15482981 is an apocalyptic number.

It is an amenable number.

15482981 is a deficient number, since it is larger than the sum of its proper divisors (597403).

15482981 is a wasteful number, since it uses less digits than its factorization.

15482981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091.

The product of its digits is 23040, while the sum is 38.

The square root of 15482981 is about 3934.8419282101. The cubic root of 15482981 is about 249.2402588457.

The spelling of 15482981 in words is "fifteen million, four hundred eighty-two thousand, nine hundred eighty-one".