138314645 has 16 divisors (see below), whose sum is σ = 190904448. Its totient is φ = 94236480.

The previous prime is 138314629. The next prime is 138314677. The reversal of 138314645 is 546413831.

It is not a de Polignac number, because 138314645 - 2⁴ = 138314629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7091 + ... + 18080.

It is an arithmetic number, because the mean of its divisors is an integer number (11931528).

Almost surely, 2^138314645 is an apocalyptic number.

It is an amenable number.

138314645 is a deficient number, since it is larger than the sum of its proper divisors (52589803).

138314645 is a wasteful number, since it uses less digits than its factorization.

138314645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340.

The product of its digits is 34560, while the sum is 35.

The square root of 138314645 is about 11760.7246800527. The cubic root of 138314645 is about 517.1573747053.

The spelling of 138314645 in words is "one hundred thirty-eight million, three hundred fourteen thousand, six hundred forty-five".