139585450 has 12 divisors (see below), whose sum is σ = 259629030. Its totient is φ = 55834160.

The previous prime is 139585429. The next prime is 139585451. The reversal of 139585450 is 54585931.

139585450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 135419769 + 4165681 = 11637^2 + 2041^2 .

It is not an unprimeable number, because it can be changed into a prime (139585451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1395805 + ... + 1395904.

Almost surely, 2^139585450 is an apocalyptic number.

139585450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139585450 is a deficient number, since it is larger than the sum of its proper divisors (120043580).

139585450 is a wasteful number, since it uses less digits than its factorization.

139585450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791721 (or 2791716 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 139585450 is about 11814.6286441851. The cubic root of 139585450 is about 518.7363919593.

The spelling of 139585450 in words is "one hundred thirty-nine million, five hundred eighty-five thousand, four hundred fifty".