745242499 has 2 divisors, whose sum is σ = 745242500. Its totient is φ = 745242498.

The previous prime is 745242497. The next prime is 745242569. The reversal of 745242499 is 994242547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745242499 - 2¹ = 745242497 is a prime.

Together with 745242497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (745242497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372621249 + 372621250.

It is an arithmetic number, because the mean of its divisors is an integer number (372621250).

Almost surely, 2^745242499 is an apocalyptic number.

745242499 is a deficient number, since it is larger than the sum of its proper divisors (1).

745242499 is an equidigital number, since it uses as much as digits as its factorization.

745242499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The square root of 745242499 is about 27299.1300044525. The cubic root of 745242499 is about 906.6351193037.

The spelling of 745242499 in words is "seven hundred forty-five million, two hundred forty-two thousand, four hundred ninety-nine".