705118549 has 2 divisors, whose sum is σ = 705118550. Its totient is φ = 705118548.

The previous prime is 705118543. The next prime is 705118573. The reversal of 705118549 is 945811507.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689062500 + 16056049 = 26250^2 + 4007^2 .

It is a cyclic number.

It is not a de Polignac number, because 705118549 - 2³ = 705118541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705118541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352559274 + 352559275.

It is an arithmetic number, because the mean of its divisors is an integer number (352559275).

Almost surely, 2^705118549 is an apocalyptic number.

It is an amenable number.

705118549 is a deficient number, since it is larger than the sum of its proper divisors (1).

705118549 is an equidigital number, since it uses as much as digits as its factorization.

705118549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 705118549 is about 26554.0684076847. The cubic root of 705118549 is about 890.0629291025.

It can be divided in two parts, 7051 and 18549, that added together give a square (25600 = 160²).

The spelling of 705118549 in words is "seven hundred five million, one hundred eighteen thousand, five hundred forty-nine".