138622629 has 8 divisors (see below), whose sum is σ = 185604480. Its totient is φ = 92027936.

The previous prime is 138622621. The next prime is 138622657. The reversal of 138622629 is 926226831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138622629 - 2³ = 138622621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138622621) 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, 95952 + ... + 97385.

It is an arithmetic number, because the mean of its divisors is an integer number (23200560).

Almost surely, 2^138622629 is an apocalyptic number.

It is an amenable number.

138622629 is a deficient number, since it is larger than the sum of its proper divisors (46981851).

138622629 is a wasteful number, since it uses less digits than its factorization.

138622629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193579.

The product of its digits is 62208, while the sum is 39.

The square root of 138622629 is about 11773.8111501756. The cubic root of 138622629 is about 517.5409400737.

The spelling of 138622629 in words is "one hundred thirty-eight million, six hundred twenty-two thousand, six hundred twenty-nine".