138674914 has 16 divisors (see below), whose sum is σ = 243258048. Its totient is φ = 58049712.

The previous prime is 138674881. The next prime is 138674917. The reversal of 138674914 is 419476831.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (138674917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114577 + ... + 115780.

It is an arithmetic number, because the mean of its divisors is an integer number (15203628).

Almost surely, 2^138674914 is an apocalyptic number.

138674914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138674914 is a deficient number, since it is larger than the sum of its proper divisors (104583134).

138674914 is a wasteful number, since it uses less digits than its factorization.

138674914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230409.

The product of its digits is 145152, while the sum is 43.

The square root of 138674914 is about 11776.0313348768. The cubic root of 138674914 is about 517.6059997417.

It can be divided in two parts, 13867 and 4914, that added together give a palindrome (18781).

The spelling of 138674914 in words is "one hundred thirty-eight million, six hundred seventy-four thousand, nine hundred fourteen".