139901584 has 15 divisors (see below), whose sum is σ = 271151017. Its totient is φ = 69927136.

The previous prime is 139901533. The next prime is 139901599. The reversal of 139901584 is 485109931.

The square root of 139901584 is 11828.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 113891584 = 5100^2 + 10672^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 45834 + ... + 48790.

Almost surely, 2^139901584 is an apocalyptic number.

139901584 is the 11828-th square number.

It is an amenable number.

139901584 is a deficient number, since it is larger than the sum of its proper divisors (131249433).

139901584 is an frugal number, since it uses more digits than its factorization.

139901584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The cubic root of 139901584 is about 519.1277091633.

The spelling of 139901584 in words is "one hundred thirty-nine million, nine hundred one thousand, five hundred eighty-four".