1822713245 has 18 divisors (see below), whose sum is σ = 2230827534. Its totient is φ = 1429683840.

The previous prime is 1822713239. The next prime is 1822713247. The reversal of 1822713245 is 5423172281.

It can be written as a sum of positive squares in 9 ways, for example, as 1749079684 + 73633561 = 41822^2 + 8581^2 .

It is not a de Polignac number, because 1822713245 - 2⁴ = 1822713229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822713247) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5823209 + ... + 5823521.

It is an arithmetic number, because the mean of its divisors is an integer number (123934863).

Almost surely, 2^1822713245 is an apocalyptic number.

It is an amenable number.

1822713245 is a deficient number, since it is larger than the sum of its proper divisors (408114289).

1822713245 is an frugal number, since it uses more digits than its factorization.

1822713245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 379 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 1822713245 is about 42693.2458944035. The cubic root of 1822713245 is about 1221.5355664315.

The spelling of 1822713245 in words is "one billion, eight hundred twenty-two million, seven hundred thirteen thousand, two hundred forty-five".