743340139 has 2 divisors, whose sum is σ = 743340140. Its totient is φ = 743340138.

The previous prime is 743340131. The next prime is 743340161. The reversal of 743340139 is 931043347.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 743340139 - 2³ = 743340131 is a prime.

It is not a weakly prime, because it can be changed into another prime (743340131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371670069 + 371670070.

It is an arithmetic number, because the mean of its divisors is an integer number (371670070).

Almost surely, 2^743340139 is an apocalyptic number.

743340139 is a deficient number, since it is larger than the sum of its proper divisors (1).

743340139 is an equidigital number, since it uses as much as digits as its factorization.

743340139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 743340139 is about 27264.2648718061. The cubic root of 743340139 is about 905.8630144549.

The spelling of 743340139 in words is "seven hundred forty-three million, three hundred forty thousand, one hundred thirty-nine".