138151567 has 2 divisors, whose sum is σ = 138151568. Its totient is φ = 138151566.

The previous prime is 138151553. The next prime is 138151583. The reversal of 138151567 is 765151831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138151567 - 2⁷ = 138151439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138151597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69075783 + 69075784.

It is an arithmetic number, because the mean of its divisors is an integer number (69075784).

Almost surely, 2^138151567 is an apocalyptic number.

138151567 is a deficient number, since it is larger than the sum of its proper divisors (1).

138151567 is an equidigital number, since it uses as much as digits as its factorization.

138151567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 37.

The square root of 138151567 is about 11753.7894740377. The cubic root of 138151567 is about 516.9540456518.

The spelling of 138151567 in words is "one hundred thirty-eight million, one hundred fifty-one thousand, five hundred sixty-seven".