139852285 has 16 divisors (see below), whose sum is σ = 178039296. Its totient is φ = 105096448.

The previous prime is 139852241. The next prime is 139852291. The reversal of 139852285 is 582258931.

It is not a de Polignac number, because 139852285 - 2⁷ = 139852157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53724 + ... + 56266.

It is an arithmetic number, because the mean of its divisors is an integer number (11127456).

Almost surely, 2^139852285 is an apocalyptic number.

It is an amenable number.

139852285 is a deficient number, since it is larger than the sum of its proper divisors (38187011).

139852285 is a wasteful number, since it uses less digits than its factorization.

139852285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212.

The product of its digits is 172800, while the sum is 43.

The square root of 139852285 is about 11825.9158207726. The cubic root of 139852285 is about 519.0667246652.

The spelling of 139852285 in words is "one hundred thirty-nine million, eight hundred fifty-two thousand, two hundred eighty-five".