745747523 has 2 divisors, whose sum is σ = 745747524. Its totient is φ = 745747522.

The previous prime is 745747493. The next prime is 745747537. The reversal of 745747523 is 325747547.

It is a strong prime.

It is an emirp because it is prime and its reverse (325747547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745747523 - 2¹⁶ = 745681987 is a prime.

It is a super-2 number, since 2×745747523² = 1112278736121271058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745747553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372873761 + 372873762.

It is an arithmetic number, because the mean of its divisors is an integer number (372873762).

Almost surely, 2^745747523 is an apocalyptic number.

745747523 is a deficient number, since it is larger than the sum of its proper divisors (1).

745747523 is an equidigital number, since it uses as much as digits as its factorization.

745747523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 823200, while the sum is 44.

The square root of 745747523 is about 27308.3782564985. The cubic root of 745747523 is about 906.8398710484.

The spelling of 745747523 in words is "seven hundred forty-five million, seven hundred forty-seven thousand, five hundred twenty-three".