745012091 has 2 divisors, whose sum is σ = 745012092. Its totient is φ = 745012090.

The previous prime is 745012033. The next prime is 745012127. The reversal of 745012091 is 190210547.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-745012091 is a prime.

It is not a weakly prime, because it can be changed into another prime (745012391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372506045 + 372506046.

It is an arithmetic number, because the mean of its divisors is an integer number (372506046).

Almost surely, 2^745012091 is an apocalyptic number.

745012091 is a deficient number, since it is larger than the sum of its proper divisors (1).

745012091 is an equidigital number, since it uses as much as digits as its factorization.

745012091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 745012091 is about 27294.9096169964. The cubic root of 745012091 is about 906.5416743214.

The spelling of 745012091 in words is "seven hundred forty-five million, twelve thousand, ninety-one".