138425064 has 32 divisors (see below), whose sum is σ = 350448000. Its totient is φ = 45556992.

The previous prime is 138425059. The next prime is 138425087. The reversal of 138425064 is 460524831.

It is a super-2 number, since 2×138425064² = 38322996686808192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34609 + ... + 38400.

It is an arithmetic number, because the mean of its divisors is an integer number (10951500).

Almost surely, 2^138425064 is an apocalyptic number.

It is an amenable number.

138425064 is an abundant number, since it is smaller than the sum of its proper divisors (212022936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138425064 is a wasteful number, since it uses less digits than its factorization.

138425064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73097 (or 73093 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 138425064 is about 11765.4181396158. The cubic root of 138425064 is about 517.2949566926.

Adding to 138425064 its reverse (460524831), we get a palindrome (598949895).

The spelling of 138425064 in words is "one hundred thirty-eight million, four hundred twenty-five thousand, sixty-four".