981208125 has 120 divisors (see below), whose sum is σ = 1941578496. Its totient is φ = 475200000.

The previous prime is 981208121. The next prime is 981208141. The reversal of 981208125 is 521802189.

It is not a de Polignac number, because 981208125 - 2² = 981208121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 981208125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981208121) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2964210 + ... + 2964540.

Almost surely, 2^981208125 is an apocalyptic number.

It is an amenable number.

981208125 is a deficient number, since it is larger than the sum of its proper divisors (960370371).

981208125 is a wasteful number, since it uses less digits than its factorization.

981208125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 981208125 is about 31324.2418104573. The cubic root of 981208125 is about 993.6963896557.

The spelling of 981208125 in words is "nine hundred eighty-one million, two hundred eight thousand, one hundred twenty-five".