139703450 has 24 divisors (see below), whose sum is σ = 275135292. Its totient is φ = 52593920.

The previous prime is 139703437. The next prime is 139703483. The reversal of 139703450 is 54307931.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 37834801 + 101868649 = 6151^2 + 10093^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81329 + ... + 83028.

Almost surely, 2^139703450 is an apocalyptic number.

139703450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139703450 is a deficient number, since it is larger than the sum of its proper divisors (135431842).

139703450 is a wasteful number, since it uses less digits than its factorization.

139703450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164386 (or 164381 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 139703450 is about 11819.6213983359. The cubic root of 139703450 is about 518.8825238422.

The spelling of 139703450 in words is "one hundred thirty-nine million, seven hundred three thousand, four hundred fifty".