981554572 has 6 divisors (see below), whose sum is σ = 1717720508. Its totient is φ = 490777284.

The previous prime is 981554521. The next prime is 981554579. The reversal of 981554572 is 275455189.

It is not an unprimeable number, because it can be changed into a prime (981554579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122694318 + ... + 122694325.

Almost surely, 2^981554572 is an apocalyptic number.

It is an amenable number.

981554572 is a deficient number, since it is larger than the sum of its proper divisors (736165936).

981554572 is a wasteful number, since it uses less digits than its factorization.

981554572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245388647 (or 245388645 counting only the distinct ones).

The product of its digits is 504000, while the sum is 46.

The square root of 981554572 is about 31329.7713365419. The cubic root of 981554572 is about 993.8133280213.

The spelling of 981554572 in words is "nine hundred eighty-one million, five hundred fifty-four thousand, five hundred seventy-two".