138602054 has 16 divisors (see below), whose sum is σ = 227235456. Its totient is φ = 63120000.

The previous prime is 138602047. The next prime is 138602069. The reversal of 138602054 is 450206831.

138602054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 64697 + ... + 66804.

It is an arithmetic number, because the mean of its divisors is an integer number (14202216).

Almost surely, 2^138602054 is an apocalyptic number.

138602054 is a deficient number, since it is larger than the sum of its proper divisors (88633402).

138602054 is a wasteful number, since it uses less digits than its factorization.

138602054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131551.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 138602054 is about 11772.9373564969. The cubic root of 138602054 is about 517.5153335480.

Adding to 138602054 its reverse (450206831), we get a palindrome (588808885).

The spelling of 138602054 in words is "one hundred thirty-eight million, six hundred two thousand, fifty-four".