745870481 has 2 divisors, whose sum is σ = 745870482. Its totient is φ = 745870480.

The previous prime is 745870439. The next prime is 745870487. The reversal of 745870481 is 184078547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705433600 + 40436881 = 26560^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 745870481 - 2¹⁸ = 745608337 is a prime.

It is a super-2 number, since 2×745870481² = 1112645548854342722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745870487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372935240 + 372935241.

It is an arithmetic number, because the mean of its divisors is an integer number (372935241).

Almost surely, 2^745870481 is an apocalyptic number.

It is an amenable number.

745870481 is a deficient number, since it is larger than the sum of its proper divisors (1).

745870481 is an equidigital number, since it uses as much as digits as its factorization.

745870481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 745870481 is about 27310.6294508201. The cubic root of 745870481 is about 906.8897078836.

The spelling of 745870481 in words is "seven hundred forty-five million, eight hundred seventy thousand, four hundred eighty-one".