138713254 has 8 divisors (see below), whose sum is σ = 208323360. Its totient is φ = 69272136.

The previous prime is 138713233. The next prime is 138713257. The reversal of 138713254 is 452317831.

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

It is a super-3 number, since 3×138713254³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138713257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40174 + ... + 43489.

It is an arithmetic number, because the mean of its divisors is an integer number (26040420).

Almost surely, 2^138713254 is an apocalyptic number.

138713254 is a deficient number, since it is larger than the sum of its proper divisors (69610106).

138713254 is an equidigital number, since it uses as much as digits as its factorization.

138713254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84494.

The product of its digits is 20160, while the sum is 34.

The square root of 138713254 is about 11777.6591052722. The cubic root of 138713254 is about 517.6536968699.

It can be divided in two parts, 1387 and 13254, that added together give a palindrome (14641).

The spelling of 138713254 in words is "one hundred thirty-eight million, seven hundred thirteen thousand, two hundred fifty-four".