138752914 has 8 divisors (see below), whose sum is σ = 210764160. Its totient is φ = 68498196.

The previous prime is 138752909. The next prime is 138752917. The reversal of 138752914 is 419257831.

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

It is a super-2 number, since 2×138752914² = 38504742286982792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138752917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438934 + ... + 439249.

It is an arithmetic number, because the mean of its divisors is an integer number (26345520).

Almost surely, 2^138752914 is an apocalyptic number.

138752914 is a deficient number, since it is larger than the sum of its proper divisors (72011246).

138752914 is an equidigital number, since it uses as much as digits as its factorization.

138752914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878264.

The product of its digits is 60480, while the sum is 40.

The square root of 138752914 is about 11779.3426811516. The cubic root of 138752914 is about 517.7030269056.

The spelling of 138752914 in words is "one hundred thirty-eight million, seven hundred fifty-two thousand, nine hundred fourteen".