1645748295 has 32 divisors (see below), whose sum is σ = 2653005312. Its totient is φ = 871158912.

The previous prime is 1645748267. The next prime is 1645748309. The reversal of 1645748295 is 5928475461.

It is not a de Polignac number, because 1645748295 - 2¹¹ = 1645746247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1345054 + ... + 1346276.

It is an arithmetic number, because the mean of its divisors is an integer number (82906416).

Almost surely, 2^1645748295 is an apocalyptic number.

1645748295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1645748295 is a deficient number, since it is larger than the sum of its proper divisors (1007257017).

1645748295 is a wasteful number, since it uses less digits than its factorization.

1645748295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its digits is 2419200, while the sum is 51.

The square root of 1645748295 is about 40567.8233949025. The cubic root of 1645748295 is about 1180.6499089090.

The spelling of 1645748295 in words is "one billion, six hundred forty-five million, seven hundred forty-eight thousand, two hundred ninety-five".