1645132295 has 8 divisors (see below), whose sum is σ = 2027514624. Its totient is φ = 1280535264.

The previous prime is 1645132277. The next prime is 1645132297. The reversal of 1645132295 is 5922315461.

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

It is a cyclic number.

It is not a de Polignac number, because 1645132295 - 2³⁰ = 571390471 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 (1645132297) 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, 4446119 + ... + 4446488.

It is an arithmetic number, because the mean of its divisors is an integer number (253439328).

Almost surely, 2^1645132295 is an apocalyptic number.

1645132295 is a deficient number, since it is larger than the sum of its proper divisors (382382329).

1645132295 is an equidigital number, since it uses as much as digits as its factorization.

1645132295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892649.

The product of its digits is 64800, while the sum is 38.

The square root of 1645132295 is about 40560.2304603906. The cubic root of 1645132295 is about 1180.5025856306.

The spelling of 1645132295 in words is "one billion, six hundred forty-five million, one hundred thirty-two thousand, two hundred ninety-five".