138677090 has 16 divisors (see below), whose sum is σ = 250128000. Its totient is φ = 55357680.

The previous prime is 138677087. The next prime is 138677093. The reversal of 138677090 is 90776831.

It is an interprime number because it is at equal distance from previous prime (138677087) and next prime (138677093).

It is not an unprimeable number, because it can be changed into a prime (138677093) 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, 8906 + ... + 18885.

It is an arithmetic number, because the mean of its divisors is an integer number (15633000).

Almost surely, 2^138677090 is an apocalyptic number.

138677090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138677090 is a deficient number, since it is larger than the sum of its proper divisors (111450910).

138677090 is a wasteful number, since it uses less digits than its factorization.

138677090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28297.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 138677090 is about 11776.1237255729. The cubic root of 138677090 is about 517.6087070441.

The spelling of 138677090 in words is "one hundred thirty-eight million, six hundred seventy-seven thousand, ninety".