981625015 has 8 divisors (see below), whose sum is σ = 1346228640. Its totient is φ = 673114272.

The previous prime is 981624997. The next prime is 981625049. The reversal of 981625015 is 510526189.

981625015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 981625015 - 2⁵ = 981624983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14023180 + ... + 14023249.

It is an arithmetic number, because the mean of its divisors is an integer number (168278580).

Almost surely, 2^981625015 is an apocalyptic number.

981625015 is a deficient number, since it is larger than the sum of its proper divisors (364603625).

981625015 is a wasteful number, since it uses less digits than its factorization.

981625015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28046441.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 981625015 is about 31330.8955345997. The cubic root of 981625015 is about 993.8371017097.

The spelling of 981625015 in words is "nine hundred eighty-one million, six hundred twenty-five thousand, fifteen".