138274 has 8 divisors (see below), whose sum is σ = 211968. Its totient is φ = 67620.

The previous prime is 138251. The next prime is 138283. The reversal of 138274 is 472831.

138274 = T₅₂ + T₅₃ + ... + T₉₈.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (26496).

2¹³⁸²⁷⁴ is an apocalyptic number.

138274 is a deficient number, since it is larger than the sum of its proper divisors (73694).

138274 is a wasteful number, since it uses less digits than its factorization.

138274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its digits is 1344, while the sum is 25.

The square root of 138274 is about 371.8521211450. The cubic root of 138274 is about 51.7106712630.

It can be divided in two parts, 13827 and 4, that added together give a palindrome (13831).

The spelling of 138274 in words is "one hundred thirty-eight thousand, two hundred seventy-four".