981608151 has 16 divisors (see below), whose sum is σ = 1336464864. Its totient is φ = 640710144.

The previous prime is 981608137. The next prime is 981608161. The reversal of 981608151 is 151806189.

981608151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 981608151 - 2⁵ = 981608119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981608161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13645 + ... + 46361.

It is an arithmetic number, because the mean of its divisors is an integer number (83529054).

Almost surely, 2^981608151 is an apocalyptic number.

981608151 is a deficient number, since it is larger than the sum of its proper divisors (354856713).

981608151 is a wasteful number, since it uses less digits than its factorization.

981608151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32930.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 981608151 is about 31330.6264061222. The cubic root of 981608151 is about 993.8314104105.

The spelling of 981608151 in words is "nine hundred eighty-one million, six hundred eight thousand, one hundred fifty-one".