139885452 has 72 divisors (see below), whose sum is σ = 427898016. Its totient is φ = 37615104.

The previous prime is 139885451. The next prime is 139885463. The reversal of 139885452 is 254588931.

139885452 is a `hidden beast` number, since 13 + 98 + 8 + 545 + 2 = 666.

139885452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139885398 and 139885407.

It is not an unprimeable number, because it can be changed into a prime (139885451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12043 + ... + 20610.

It is an arithmetic number, because the mean of its divisors is an integer number (5943028).

Almost surely, 2^139885452 is an apocalyptic number.

139885452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139885452 is an abundant number, since it is smaller than the sum of its proper divisors (288012564).

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

139885452 is a wasteful number, since it uses less digits than its factorization.

139885452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32687 (or 32682 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 139885452 is about 11827.3180391837. The cubic root of 139885452 is about 519.1077549215.

The spelling of 139885452 in words is "one hundred thirty-nine million, eight hundred eighty-five thousand, four hundred fifty-two".