745233091 has 2 divisors, whose sum is σ = 745233092. Its totient is φ = 745233090.

The previous prime is 745233089. The next prime is 745233103. The reversal of 745233091 is 190332547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745233091 - 2¹ = 745233089 is a prime.

Together with 745233089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (745233001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372616545 + 372616546.

It is an arithmetic number, because the mean of its divisors is an integer number (372616546).

Almost surely, 2^745233091 is an apocalyptic number.

745233091 is a deficient number, since it is larger than the sum of its proper divisors (1).

745233091 is an equidigital number, since it uses as much as digits as its factorization.

745233091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 745233091 is about 27298.9576907251. The cubic root of 745233091 is about 906.6313041433.

The spelling of 745233091 in words is "seven hundred forty-five million, two hundred thirty-three thousand, ninety-one".