743274253 has 2 divisors, whose sum is σ = 743274254. Its totient is φ = 743274252.

The previous prime is 743274209. The next prime is 743274293. The reversal of 743274253 is 352472347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726733764 + 16540489 = 26958^2 + 4067^2 .

It is an emirp because it is prime and its reverse (352472347) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743274253 is a prime.

It is a super-3 number, since 3×743274253³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743274293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371637126 + 371637127.

It is an arithmetic number, because the mean of its divisors is an integer number (371637127).

Almost surely, 2^743274253 is an apocalyptic number.

It is an amenable number.

743274253 is a deficient number, since it is larger than the sum of its proper divisors (1).

743274253 is an equidigital number, since it uses as much as digits as its factorization.

743274253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 37.

The square root of 743274253 is about 27263.0565601145. The cubic root of 743274253 is about 905.8362499223.

The spelling of 743274253 in words is "seven hundred forty-three million, two hundred seventy-four thousand, two hundred fifty-three".