139898874 has 8 divisors (see below), whose sum is σ = 279797760. Its totient is φ = 46632956.

The previous prime is 139898873. The next prime is 139898893. The reversal of 139898874 is 478898931.

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

139898874 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (139898873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11658234 + ... + 11658245.

It is an arithmetic number, because the mean of its divisors is an integer number (34974720).

Almost surely, 2^139898874 is an apocalyptic number.

139898874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139898874 is a wasteful number, since it uses less digits than its factorization.

139898874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23316484.

The product of its digits is 3483648, while the sum is 57.

The square root of 139898874 is about 11827.8854407709. The cubic root of 139898874 is about 519.1243571756.

Adding to 139898874 its sum of digits (57), we get a palindrome (139898931).

The spelling of 139898874 in words is "one hundred thirty-nine million, eight hundred ninety-eight thousand, eight hundred seventy-four".