139928998 has 24 divisors (see below), whose sum is σ = 234516240. Its totient is φ = 62554800.

The previous prime is 139928993. The next prime is 139929103. The reversal of 139928998 is 899829931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139928993) 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 in 11 ways as a sum of consecutive naturals, for example, 10023 + ... + 19501.

It is an arithmetic number, because the mean of its divisors is an integer number (9771510).

Almost surely, 2^139928998 is an apocalyptic number.

139928998 is a deficient number, since it is larger than the sum of its proper divisors (94587242).

139928998 is a wasteful number, since it uses less digits than its factorization.

139928998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564 (or 9553 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 58.

The square root of 139928998 is about 11829.1588035667. The cubic root of 139928998 is about 519.1616149924.

The spelling of 139928998 in words is "one hundred thirty-nine million, nine hundred twenty-eight thousand, nine hundred ninety-eight".