138054794 has 4 divisors (see below), whose sum is σ = 207082194. Its totient is φ = 69027396.

The previous prime is 138054793. The next prime is 138054803. The reversal of 138054794 is 497450831.

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., 137710225 + 344569 = 11735^2 + 587^2 .

It is a super-2 number, since 2×138054794² = 38118252292764872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138054793) by changing a digit.

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 as a sum of consecutive naturals, namely, 34513697 + ... + 34513700.

Almost surely, 2^138054794 is an apocalyptic number.

138054794 is a deficient number, since it is larger than the sum of its proper divisors (69027400).

138054794 is an equidigital number, since it uses as much as digits as its factorization.

138054794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69027399.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 138054794 is about 11749.6720805306. The cubic root of 138054794 is about 516.8333113970.

The spelling of 138054794 in words is "one hundred thirty-eight million, fifty-four thousand, seven hundred ninety-four".