138774127 has 8 divisors (see below), whose sum is σ = 142002432. Its totient is φ = 135557400.

The previous prime is 138774121. The next prime is 138774137. The reversal of 138774127 is 721477831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138774127 - 2¹¹ = 138772079 is a prime.

It is a super-2 number, since 2×138774127² = 38516516649224258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138774127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138774121) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 24252 + ... + 29422.

It is an arithmetic number, because the mean of its divisors is an integer number (17750304).

Almost surely, 2^138774127 is an apocalyptic number.

138774127 is a deficient number, since it is larger than the sum of its proper divisors (3228305).

138774127 is an equidigital number, since it uses as much as digits as its factorization.

138774127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789.

The product of its digits is 65856, while the sum is 40.

The square root of 138774127 is about 11780.2430789861. The cubic root of 138774127 is about 517.7294082727.

The spelling of 138774127 in words is "one hundred thirty-eight million, seven hundred seventy-four thousand, one hundred twenty-seven".