138275246 has 16 divisors (see below), whose sum is σ = 221882976. Its totient is φ = 64398336.

The previous prime is 138275239. The next prime is 138275257. The reversal of 138275246 is 642572831.

It is a happy number.

It is a congruent number.

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, 17666 + ... + 24261.

It is an arithmetic number, because the mean of its divisors is an integer number (13867686).

Almost surely, 2^138275246 is an apocalyptic number.

138275246 is a deficient number, since it is larger than the sum of its proper divisors (83607730).

138275246 is a wasteful number, since it uses less digits than its factorization.

138275246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42043.

The product of its digits is 80640, while the sum is 38.

The square root of 138275246 is about 11759.0495364209. The cubic root of 138275246 is about 517.1082658579.

The spelling of 138275246 in words is "one hundred thirty-eight million, two hundred seventy-five thousand, two hundred forty-six".