138167265 has 16 divisors (see below), whose sum is σ = 222535296. Its totient is φ = 73200000.

The previous prime is 138167261. The next prime is 138167291. The reversal of 138167265 is 562761831.

It is not a de Polignac number, because 138167265 - 2² = 138167261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138167261) 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, 28236 + ... + 32765.

It is an arithmetic number, because the mean of its divisors is an integer number (13908456).

Almost surely, 2^138167265 is an apocalyptic number.

138167265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138167265 is a deficient number, since it is larger than the sum of its proper divisors (84368031).

138167265 is a wasteful number, since it uses less digits than its factorization.

138167265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61160.

The product of its digits is 60480, while the sum is 39.

The square root of 138167265 is about 11754.4572397027. The cubic root of 138167265 is about 516.9736252036.

The spelling of 138167265 in words is "one hundred thirty-eight million, one hundred sixty-seven thousand, two hundred sixty-five".