138645141 has 8 divisors (see below), whose sum is σ = 185929440. Its totient is φ = 91895472.

The previous prime is 138645083. The next prime is 138645163. The reversal of 138645141 is 141546831.

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

It is not a de Polignac number, because 138645141 - 2⁶ = 138645077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138645341) 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, 133051 + ... + 134088.

It is an arithmetic number, because the mean of its divisors is an integer number (23241180).

Almost surely, 2^138645141 is an apocalyptic number.

It is an amenable number.

138645141 is a deficient number, since it is larger than the sum of its proper divisors (47284299).

138645141 is a wasteful number, since it uses less digits than its factorization.

138645141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267315.

The product of its digits is 11520, while the sum is 33.

The square root of 138645141 is about 11774.7671314553. The cubic root of 138645141 is about 517.5689543815.

The spelling of 138645141 in words is "one hundred thirty-eight million, six hundred forty-five thousand, one hundred forty-one".