138010169 has 4 divisors (see below), whose sum is σ = 150556560. Its totient is φ = 125463780.

The previous prime is 138010163. The next prime is 138010193. The reversal of 138010169 is 961010831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138010169 - 2⁴ = 138010153 is a prime.

It is a super-2 number, since 2×138010169² = 38093613494817122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138010163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6273179 + ... + 6273200.

It is an arithmetic number, because the mean of its divisors is an integer number (37639140).

Almost surely, 2^138010169 is an apocalyptic number.

It is an amenable number.

138010169 is a deficient number, since it is larger than the sum of its proper divisors (12546391).

138010169 is a wasteful number, since it uses less digits than its factorization.

138010169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546390.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 138010169 is about 11747.7729378806. The cubic root of 138010169 is about 516.7776181191. Note that the first 3 decimals are identical.

The spelling of 138010169 in words is "one hundred thirty-eight million, ten thousand, one hundred sixty-nine".