138587054 has 4 divisors (see below), whose sum is σ = 207880584. Its totient is φ = 69293526.

The previous prime is 138587039. The next prime is 138587087. The reversal of 138587054 is 450785831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450785831 = 29 ⋅15544339.

It is a congruent number.

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, 34646762 + ... + 34646765.

It is an arithmetic number, because the mean of its divisors is an integer number (51970146).

Almost surely, 2^138587054 is an apocalyptic number.

138587054 is a deficient number, since it is larger than the sum of its proper divisors (69293530).

138587054 is an equidigital number, since it uses as much as digits as its factorization.

138587054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69293529.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 138587054 is about 11772.3002849910. The cubic root of 138587054 is about 517.4966637668.

The spelling of 138587054 in words is "one hundred thirty-eight million, five hundred eighty-seven thousand, fifty-four".