745549019 has 2 divisors, whose sum is σ = 745549020. Its totient is φ = 745549018.

The previous prime is 745548997. The next prime is 745549069. The reversal of 745549019 is 910945547.

745549019 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 not a de Polignac number, because 745549019 - 2⁸ = 745548763 is a prime.

It is a super-2 number, since 2×745549019² = 1111686679463724722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (745549069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372774509 + 372774510.

It is an arithmetic number, because the mean of its divisors is an integer number (372774510).

Almost surely, 2^745549019 is an apocalyptic number.

745549019 is a deficient number, since it is larger than the sum of its proper divisors (1).

745549019 is an equidigital number, since it uses as much as digits as its factorization.

745549019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 745549019 is about 27304.7435256221. The cubic root of 745549019 is about 906.7594026546.

The spelling of 745549019 in words is "seven hundred forty-five million, five hundred forty-nine thousand, nineteen".