1645034312 has 8 divisors (see below), whose sum is σ = 3084439350. Its totient is φ = 822517152.

The previous prime is 1645034297. The next prime is 1645034327. The reversal of 1645034312 is 2134305461.

It is an interprime number because it is at equal distance from previous prime (1645034297) and next prime (1645034327).

It can be written as a sum of positive squares in only one way, i.e., 1450543396 + 194490916 = 38086^2 + 13946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1645034312² = 5412275775314626688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102814637 + ... + 102814652.

Almost surely, 2^1645034312 is an apocalyptic number.

It is an amenable number.

1645034312 is a deficient number, since it is larger than the sum of its proper divisors (1439405038).

1645034312 is a wasteful number, since it uses less digits than its factorization.

1645034312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205629295 (or 205629291 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1645034312 is about 40559.0225720492. The cubic root of 1645034312 is about 1180.4791485122.

Adding to 1645034312 its reverse (2134305461), we get a palindrome (3779339773).

The spelling of 1645034312 in words is "one billion, six hundred forty-five million, thirty-four thousand, three hundred twelve".