138152867 has 2 divisors, whose sum is σ = 138152868. Its totient is φ = 138152866.

The previous prime is 138152849. The next prime is 138152869. The reversal of 138152867 is 768251831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138152867 - 2⁶ = 138152803 is a prime.

Together with 138152869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138152869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69076433 + 69076434.

It is an arithmetic number, because the mean of its divisors is an integer number (69076434).

Almost surely, 2^138152867 is an apocalyptic number.

138152867 is a deficient number, since it is larger than the sum of its proper divisors (1).

138152867 is an equidigital number, since it uses as much as digits as its factorization.

138152867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 138152867 is about 11753.8447752214. The cubic root of 138152867 is about 516.9556671515.

The spelling of 138152867 in words is "one hundred thirty-eight million, one hundred fifty-two thousand, eight hundred sixty-seven".