1323995545 has 8 divisors (see below), whose sum is σ = 1614840840. Its totient is φ = 1041832320.

The previous prime is 1323995507. The next prime is 1323995549. The reversal of 1323995545 is 5455993231.

It can be written as a sum of positive squares in 4 ways, for example, as 132641289 + 1191354256 = 11517^2 + 34516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323995545 - 2¹⁷ = 1323864473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323995495 and 1323995504.

It is not an unprimeable number, because it can be changed into a prime (1323995549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170180 + ... + 2170789.

It is an arithmetic number, because the mean of its divisors is an integer number (201855105).

Almost surely, 2^1323995545 is an apocalyptic number.

It is an amenable number.

1323995545 is a deficient number, since it is larger than the sum of its proper divisors (290845295).

1323995545 is an equidigital number, since it uses as much as digits as its factorization.

1323995545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341035.

The product of its digits is 729000, while the sum is 46.

The square root of 1323995545 is about 36386.7495800326. The cubic root of 1323995545 is about 1098.0670032646.

The spelling of 1323995545 in words is "one billion, three hundred twenty-three million, nine hundred ninety-five thousand, five hundred forty-five".