1325964218 has 4 divisors (see below), whose sum is σ = 1988946330. Its totient is φ = 662982108.

The previous prime is 1325964197. The next prime is 1325964221. The reversal of 1325964218 is 8124695231.

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

It can be written as a sum of positive squares in only one way, i.e., 1166017609 + 159946609 = 34147^2 + 12647^2 .

It is a super-2 number, since 2×1325964218² = 3516362214832703048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331491053 + ... + 331491056.

Almost surely, 2^1325964218 is an apocalyptic number.

1325964218 is a deficient number, since it is larger than the sum of its proper divisors (662982112).

1325964218 is an equidigital number, since it uses as much as digits as its factorization.

1325964218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662982111.

The product of its digits is 103680, while the sum is 41.

The square root of 1325964218 is about 36413.7915905499. The cubic root of 1325964218 is about 1098.6109789884.

It can be divided in two parts, 13259 and 64218, that added together give a palindrome (77477).

The spelling of 1325964218 in words is "one billion, three hundred twenty-five million, nine hundred sixty-four thousand, two hundred eighteen".