138886485 has 32 divisors (see below), whose sum is σ = 235008000. Its totient is φ = 69846336.

The previous prime is 138886483. The next prime is 138886487. The reversal of 138886485 is 584688831.

138886485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138886483) and next prime (138886487).

It is not a de Polignac number, because 138886485 - 2¹ = 138886483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138886483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67096 + ... + 69134.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^138886485 is an apocalyptic number.

138886485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138886485 is a deficient number, since it is larger than the sum of its proper divisors (96121515).

138886485 is a wasteful number, since it uses less digits than its factorization.

138886485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305.

The product of its digits is 1474560, while the sum is 51.

The square root of 138886485 is about 11785.0110309664. The cubic root of 138886485 is about 517.8690965317.

The spelling of 138886485 in words is "one hundred thirty-eight million, eight hundred eighty-six thousand, four hundred eighty-five".