139884898 has 8 divisors (see below), whose sum is σ = 209889900. Its totient is φ = 69921600.

The previous prime is 139884887. The next prime is 139884911. The reversal of 139884898 is 898488931.

It can be written as a sum of positive squares in 2 ways, for example, as 137522529 + 2362369 = 11727^2 + 1537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78 + ... + 16726.

Almost surely, 2^139884898 is an apocalyptic number.

139884898 is a deficient number, since it is larger than the sum of its proper divisors (70005002).

139884898 is a wasteful number, since it uses less digits than its factorization.

139884898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

The product of its digits is 3981312, while the sum is 58.

The square root of 139884898 is about 11827.2946188044. The cubic root of 139884898 is about 519.1070696320.

The spelling of 139884898 in words is "one hundred thirty-nine million, eight hundred eighty-four thousand, eight hundred ninety-eight".