138326267 has 16 divisors (see below), whose sum is σ = 143942400. Its totient is φ = 132866400.

The previous prime is 138326233. The next prime is 138326273. The reversal of 138326267 is 762623831.

It is a cyclic number.

It is not a de Polignac number, because 138326267 - 2⁸ = 138326011 is a prime.

It is a super-2 number, since 2×138326267² = 38268312284310578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138326267.

It is not an unprimeable number, because it can be changed into a prime (138326207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828218 + ... + 828384.

It is an arithmetic number, because the mean of its divisors is an integer number (8996400).

Almost surely, 2^138326267 is an apocalyptic number.

138326267 is a deficient number, since it is larger than the sum of its proper divisors (5616133).

138326267 is a wasteful number, since it uses less digits than its factorization.

138326267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 72576, while the sum is 38.

The square root of 138326267 is about 11761.2187718790. The cubic root of 138326267 is about 517.1718591553.

The spelling of 138326267 in words is "one hundred thirty-eight million, three hundred twenty-six thousand, two hundred sixty-seven".