138622049 has 8 divisors (see below), whose sum is σ = 143320320. Its totient is φ = 133938000.

The previous prime is 138622009. The next prime is 138622061. The reversal of 138622049 is 940226831.

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 138622049 - 2¹² = 138617953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138622009) 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, 18542 + ... + 24920.

It is an arithmetic number, because the mean of its divisors is an integer number (17915040).

Almost surely, 2^138622049 is an apocalyptic number.

It is an amenable number.

138622049 is a deficient number, since it is larger than the sum of its proper divisors (4698271).

138622049 is an equidigital number, since it uses as much as digits as its factorization.

138622049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7111.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 138622049 is about 11773.7865192129. The cubic root of 138622049 is about 517.5402182719.

The spelling of 138622049 in words is "one hundred thirty-eight million, six hundred twenty-two thousand, forty-nine".