1325945645 has 8 divisors (see below), whose sum is σ = 1618103520. Its totient is φ = 1042777360.

The previous prime is 1325945641. The next prime is 1325945657. The reversal of 1325945645 is 5465495231.

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

It is not a de Polignac number, because 1325945645 - 2² = 1325945641 is a prime.

It is a super-3 number, since 3×1325945645³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1325945596 and 1325945605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325945641) 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, 2247071 + ... + 2247660.

It is an arithmetic number, because the mean of its divisors is an integer number (202262940).

Almost surely, 2^1325945645 is an apocalyptic number.

It is an amenable number.

1325945645 is a deficient number, since it is larger than the sum of its proper divisors (292157875).

1325945645 is an equidigital number, since it uses as much as digits as its factorization.

1325945645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494795.

The product of its digits is 648000, while the sum is 44.

The square root of 1325945645 is about 36413.5365626576. The cubic root of 1325945645 is about 1098.6058494893.

The spelling of 1325945645 in words is "one billion, three hundred twenty-five million, nine hundred forty-five thousand, six hundred forty-five".