139975743 has 8 divisors (see below), whose sum is σ = 186900400. Its totient is φ = 93184128.

The previous prime is 139975733. The next prime is 139975783. The reversal of 139975743 is 347579931.

It is a happy number.

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

It is not a de Polignac number, because 139975743 - 2⁵ = 139975711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139975692 and 139975701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139975733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30778 + ... + 35031.

It is an arithmetic number, because the mean of its divisors is an integer number (23362550).

Almost surely, 2^139975743 is an apocalyptic number.

139975743 is a deficient number, since it is larger than the sum of its proper divisors (46924657).

139975743 is an equidigital number, since it uses as much as digits as its factorization.

139975743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66521.

The product of its digits is 714420, while the sum is 48.

The square root of 139975743 is about 11831.1344764566. The cubic root of 139975743 is about 519.2194193269.

The spelling of 139975743 in words is "one hundred thirty-nine million, nine hundred seventy-five thousand, seven hundred forty-three".