139496898 has 24 divisors (see below), whose sum is σ = 294455088. Its totient is φ = 44050968.

The previous prime is 139496887. The next prime is 139496899. The reversal of 139496898 is 898694931.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139496899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30036 + ... + 34367.

It is an arithmetic number, because the mean of its divisors is an integer number (12268962).

Almost surely, 2^139496898 is an apocalyptic number.

139496898 is an abundant number, since it is smaller than the sum of its proper divisors (154958190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139496898 is a wasteful number, since it uses less digits than its factorization.

139496898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64446 (or 64427 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The square root of 139496898 is about 11810.8804921564. The cubic root of 139496898 is about 518.6266745495.

The spelling of 139496898 in words is "one hundred thirty-nine million, four hundred ninety-six thousand, eight hundred ninety-eight".