138634010 has 16 divisors (see below), whose sum is σ = 249847200. Its totient is φ = 55385616.

The previous prime is 138634009. The next prime is 138634033. The reversal of 138634010 is 10436831.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521 + ... + 16659.

It is an arithmetic number, because the mean of its divisors is an integer number (15615450).

Almost surely, 2^138634010 is an apocalyptic number.

138634010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138634010 is a deficient number, since it is larger than the sum of its proper divisors (111213190).

138634010 is a wasteful number, since it uses less digits than its factorization.

138634010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17005.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 138634010 is about 11774.2944586926. The cubic root of 138634010 is about 517.5551031587. Note that the first 3 decimals are identical.

The spelling of 138634010 in words is "one hundred thirty-eight million, six hundred thirty-four thousand, ten".