139871452 has 24 divisors (see below), whose sum is σ = 285024096. Its totient is φ = 58813248.

The previous prime is 139871449. The next prime is 139871453. The reversal of 139871452 is 254178931.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139871453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45643 + ... + 48610.

It is an arithmetic number, because the mean of its divisors is an integer number (11876004).

Almost surely, 2^139871452 is an apocalyptic number.

It is an amenable number.

139871452 is an abundant number, since it is smaller than the sum of its proper divisors (145152644).

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

139871452 is a wasteful number, since it uses less digits than its factorization.

139871452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94317 (or 94315 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 139871452 is about 11826.7261742208. The cubic root of 139871452 is about 519.0904365825.

The spelling of 139871452 in words is "one hundred thirty-nine million, eight hundred seventy-one thousand, four hundred fifty-two".