162745705 has 4 divisors (see below), whose sum is σ = 195294852. Its totient is φ = 130196560.

The previous prime is 162745699. The next prime is 162745741. The reversal of 162745705 is 507547261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129140496 + 33605209 = 11364^2 + 5797^2 .

It is not a de Polignac number, because 162745705 - 2⁷ = 162745577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16274566 + ... + 16274575.

It is an arithmetic number, because the mean of its divisors is an integer number (48823713).

Almost surely, 2^162745705 is an apocalyptic number.

It is an amenable number.

162745705 is a deficient number, since it is larger than the sum of its proper divisors (32549147).

162745705 is an equidigital number, since it uses as much as digits as its factorization.

162745705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32549146.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 162745705 is about 12757.1824867406. The cubic root of 162745705 is about 545.9713396290.

The spelling of 162745705 in words is "one hundred sixty-two million, seven hundred forty-five thousand, seven hundred five".