139354898 has 8 divisors (see below), whose sum is σ = 209289420. Its totient is φ = 69591760.

The previous prime is 139354879. The next prime is 139354921. The reversal of 139354898 is 898453931.

It can be written as a sum of positive squares in 2 ways, for example, as 137898049 + 1456849 = 11743^2 + 1207^2 .

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40793 + ... + 44076.

Almost surely, 2^139354898 is an apocalyptic number.

139354898 is a deficient number, since it is larger than the sum of its proper divisors (69934522).

139354898 is an equidigital number, since it uses as much as digits as its factorization.

139354898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85692.

The product of its digits is 933120, while the sum is 50.

The square root of 139354898 is about 11804.8675553773. The cubic root of 139354898 is about 518.4506372044.

The spelling of 139354898 in words is "one hundred thirty-nine million, three hundred fifty-four thousand, eight hundred ninety-eight".