138092074 has 4 divisors (see below), whose sum is σ = 207138114. Its totient is φ = 69046036.

The previous prime is 138092051. The next prime is 138092107. The reversal of 138092074 is 470290831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122434225 + 15657849 = 11065^2 + 3957^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34523017 + ... + 34523020.

Almost surely, 2^138092074 is an apocalyptic number.

138092074 is a deficient number, since it is larger than the sum of its proper divisors (69046040).

138092074 is an equidigital number, since it uses as much as digits as its factorization.

138092074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69046039.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 138092074 is about 11751.2584006991. The cubic root of 138092074 is about 516.8798287042.

The spelling of 138092074 in words is "one hundred thirty-eight million, ninety-two thousand, seventy-four".