138269147 has 2 divisors, whose sum is σ = 138269148. Its totient is φ = 138269146.

The previous prime is 138269107. The next prime is 138269161. The reversal of 138269147 is 741962831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138269147 - 2²⁰ = 137220571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138269107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69134573 + 69134574.

It is an arithmetic number, because the mean of its divisors is an integer number (69134574).

Almost surely, 2^138269147 is an apocalyptic number.

138269147 is a deficient number, since it is larger than the sum of its proper divisors (1).

138269147 is an equidigital number, since it uses as much as digits as its factorization.

138269147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 138269147 is about 11758.7902013770. The cubic root of 138269147 is about 517.1006629312.

The spelling of 138269147 in words is "one hundred thirty-eight million, two hundred sixty-nine thousand, one hundred forty-seven".