745920023 has 2 divisors, whose sum is σ = 745920024. Its totient is φ = 745920022.

The previous prime is 745919981. The next prime is 745920089. The reversal of 745920023 is 320029547.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (320029547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745920023 - 2⁶ = 745919959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745940023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372960011 + 372960012.

It is an arithmetic number, because the mean of its divisors is an integer number (372960012).

Almost surely, 2^745920023 is an apocalyptic number.

745920023 is a deficient number, since it is larger than the sum of its proper divisors (1).

745920023 is an equidigital number, since it uses as much as digits as its factorization.

745920023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 745920023 is about 27311.5364452460. The cubic root of 745920023 is about 906.9097864970.

The spelling of 745920023 in words is "seven hundred forty-five million, nine hundred twenty thousand, twenty-three".