712545 has 16 divisors (see below), whose sum is σ = 1158720. Its totient is φ = 373824.

The previous prime is 712531. The next prime is 712561. The reversal of 712545 is 545217.

It is not a de Polignac number, because 712545 - 2⁷ = 712417 is a prime.

It is a Curzon number.

712545 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 712545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651 + ... + 1359.

It is an arithmetic number, because the mean of its divisors is an integer number (72420).

2⁷¹²⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

712545 is a deficient number, since it is larger than the sum of its proper divisors (446175).

712545 is a wasteful number, since it uses less digits than its factorization.

712545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its digits is 1400, while the sum is 24.

The square root of 712545 is about 844.1238060853. The cubic root of 712545 is about 89.3176796784.

The spelling of 712545 in words is "seven hundred twelve thousand, five hundred forty-five".