138162275 has 12 divisors (see below), whose sum is σ = 172840872. Its totient is φ = 109549440.

The previous prime is 138162263. The next prime is 138162289. The reversal of 138162275 is 572261831.

It is a happy number.

It is not a de Polignac number, because 138162275 - 2¹² = 138158179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21629 + ... + 27278.

It is an arithmetic number, because the mean of its divisors is an integer number (14403406).

Almost surely, 2^138162275 is an apocalyptic number.

138162275 is a deficient number, since it is larger than the sum of its proper divisors (34678597).

138162275 is a wasteful number, since it uses less digits than its factorization.

138162275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49030 (or 49025 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 138162275 is about 11754.2449778793. The cubic root of 138162275 is about 516.9674015165.

The spelling of 138162275 in words is "one hundred thirty-eight million, one hundred sixty-two thousand, two hundred seventy-five".