139889488 has 40 divisors (see below), whose sum is σ = 276042600. Its totient is φ = 68665344.

The previous prime is 139889483. The next prime is 139889513. The reversal of 139889488 is 884988931.

It can be written as a sum of positive squares in 4 ways, for example, as 9290304 + 130599184 = 3048^2 + 11428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139889483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 274578 + ... + 275086.

It is an arithmetic number, because the mean of its divisors is an integer number (6901065).

Almost surely, 2^139889488 is an apocalyptic number.

It is an amenable number.

139889488 is a deficient number, since it is larger than the sum of its proper divisors (136153112).

139889488 is a wasteful number, since it uses less digits than its factorization.

139889488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 793 counting only the distinct ones).

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

The square root of 139889488 is about 11827.4886598973. The cubic root of 139889488 is about 519.1127473366.

The spelling of 139889488 in words is "one hundred thirty-nine million, eight hundred eighty-nine thousand, four hundred eighty-eight".