139768485 has 16 divisors (see below), whose sum is σ = 225339840. Its totient is φ = 73973120.

The previous prime is 139768481. The next prime is 139768523. The reversal of 139768485 is 584867931.

It is not a de Polignac number, because 139768485 - 2² = 139768481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139768481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33600 + ... + 37529.

It is an arithmetic number, because the mean of its divisors is an integer number (14083740).

Almost surely, 2^139768485 is an apocalyptic number.

139768485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139768485 is a deficient number, since it is larger than the sum of its proper divisors (85571355).

139768485 is a wasteful number, since it uses less digits than its factorization.

139768485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71268.

The product of its digits is 1451520, while the sum is 51.

The square root of 139768485 is about 11822.3722238813. The cubic root of 139768485 is about 518.9630283916.

The spelling of 139768485 in words is "one hundred thirty-nine million, seven hundred sixty-eight thousand, four hundred eighty-five".