1322115445 has 16 divisors (see below), whose sum is σ = 1813828608. Its totient is φ = 906272640.

The previous prime is 1322115439. The next prime is 1322115467. The reversal of 1322115445 is 5445112231.

It is not a de Polignac number, because 1322115445 - 2⁷ = 1322115317 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 137340 + ... + 146650.

It is an arithmetic number, because the mean of its divisors is an integer number (113364288).

Almost surely, 2^1322115445 is an apocalyptic number.

It is an amenable number.

1322115445 is a deficient number, since it is larger than the sum of its proper divisors (491713163).

1322115445 is an equidigital number, since it uses as much as digits as its factorization.

1322115445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its digits is 4800, while the sum is 28.

The square root of 1322115445 is about 36360.9054480221. The cubic root of 1322115445 is about 1097.5469980548.

Adding to 1322115445 its reverse (5445112231), we get a palindrome (6767227676).

The spelling of 1322115445 in words is "one billion, three hundred twenty-two million, one hundred fifteen thousand, four hundred forty-five".