740768531 has 2 divisors, whose sum is σ = 740768532. Its totient is φ = 740768530.

The previous prime is 740768507. The next prime is 740768537. The reversal of 740768531 is 135867047.

740768531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (135867047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740768531 is a prime.

It is a super-2 number, since 2×740768531² = 1097476033039795922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (740768537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370384265 + 370384266.

It is an arithmetic number, because the mean of its divisors is an integer number (370384266).

Almost surely, 2^740768531 is an apocalyptic number.

740768531 is a deficient number, since it is larger than the sum of its proper divisors (1).

740768531 is an equidigital number, since it uses as much as digits as its factorization.

740768531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 740768531 is about 27217.0632324650. The cubic root of 740768531 is about 904.8171872122.

The spelling of 740768531 in words is "seven hundred forty million, seven hundred sixty-eight thousand, five hundred thirty-one".