138694514 has 8 divisors (see below), whose sum is σ = 237762048. Its totient is φ = 59440500.

The previous prime is 138694499. The next prime is 138694519. The reversal of 138694514 is 415496831.

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

It is not an unprimeable number, because it can be changed into a prime (138694519) 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, 4953362 + ... + 4953389.

It is an arithmetic number, because the mean of its divisors is an integer number (29720256).

Almost surely, 2^138694514 is an apocalyptic number.

138694514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138694514 is a deficient number, since it is larger than the sum of its proper divisors (99067534).

138694514 is an equidigital number, since it uses as much as digits as its factorization.

138694514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9906760.

The product of its digits is 103680, while the sum is 41.

The square root of 138694514 is about 11776.8635043461. The cubic root of 138694514 is about 517.6303843483.

The spelling of 138694514 in words is "one hundred thirty-eight million, six hundred ninety-four thousand, five hundred fourteen".