745900091 has 2 divisors, whose sum is σ = 745900092. Its totient is φ = 745900090.

The previous prime is 745900073. The next prime is 745900123. The reversal of 745900091 is 190009547.

745900091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745900091 is a prime.

It is a Chen prime.

It is equal to p_38502809 and since 745900091 and 38502809 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (745900691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372950045 + 372950046.

It is an arithmetic number, because the mean of its divisors is an integer number (372950046).

Almost surely, 2^745900091 is an apocalyptic number.

745900091 is a deficient number, since it is larger than the sum of its proper divisors (1).

745900091 is an equidigital number, since it uses as much as digits as its factorization.

745900091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 745900091 is about 27311.1715420631. The cubic root of 745900091 is about 906.9017084697.

The spelling of 745900091 in words is "seven hundred forty-five million, nine hundred thousand, ninety-one".