743245157 has 2 divisors, whose sum is σ = 743245158. Its totient is φ = 743245156.

The previous prime is 743245133. The next prime is 743245177. The reversal of 743245157 is 751542347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434680801 + 308564356 = 20849^2 + 17566^2 .

It is a cyclic number.

It is not a de Polignac number, because 743245157 - 2¹⁰ = 743244133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 743245157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743245177) by changing a digit.

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 as a sum of consecutive naturals, namely, 371622578 + 371622579.

It is an arithmetic number, because the mean of its divisors is an integer number (371622579).

Almost surely, 2^743245157 is an apocalyptic number.

It is an amenable number.

743245157 is a deficient number, since it is larger than the sum of its proper divisors (1).

743245157 is an equidigital number, since it uses as much as digits as its factorization.

743245157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 38.

The square root of 743245157 is about 27262.5229390091. The cubic root of 743245157 is about 905.8244298997.

The spelling of 743245157 in words is "seven hundred forty-three million, two hundred forty-five thousand, one hundred fifty-seven".