138734151 has 4 divisors (see below), whose sum is σ = 184978872. Its totient is φ = 92489432.

The previous prime is 138734117. The next prime is 138734171. The reversal of 138734151 is 151437831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138734151 - 2⁷ = 138734023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138734111) 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, 23122356 + ... + 23122361.

It is an arithmetic number, because the mean of its divisors is an integer number (46244718).

Almost surely, 2^138734151 is an apocalyptic number.

138734151 is a deficient number, since it is larger than the sum of its proper divisors (46244721).

138734151 is an equidigital number, since it uses as much as digits as its factorization.

138734151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46244720.

The product of its digits is 10080, while the sum is 33.

The square root of 138734151 is about 11778.5462175941. The cubic root of 138734151 is about 517.6796902191.

The spelling of 138734151 in words is "one hundred thirty-eight million, seven hundred thirty-four thousand, one hundred fifty-one".