138739151 has 8 divisors (see below), whose sum is σ = 145398240. Its totient is φ = 132132352.

The previous prime is 138739147. The next prime is 138739157. The reversal of 138739151 is 151937831.

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 138739151 - 2² = 138739147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138739157) 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, 7586 + ... + 18303.

It is an arithmetic number, because the mean of its divisors is an integer number (18174780).

Almost surely, 2^138739151 is an apocalyptic number.

138739151 is a deficient number, since it is larger than the sum of its proper divisors (6659089).

138739151 is a wasteful number, since it uses less digits than its factorization.

138739151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145.

The product of its digits is 22680, while the sum is 38.

The square root of 138739151 is about 11778.7584659844. The cubic root of 138739151 is about 517.6859092294.

The spelling of 138739151 in words is "one hundred thirty-eight million, seven hundred thirty-nine thousand, one hundred fifty-one".