1345828851 has 20 divisors (see below), whose sum is σ = 2128698792. Its totient is φ = 844440768.

The previous prime is 1345828829. The next prime is 1345828853. The reversal of 1345828851 is 1588285431.

1345828851 is a `hidden beast` number, since 13 + 4 + 582 + 8 + 8 + 51 = 666.

It is not a de Polignac number, because 1345828851 - 2⁹ = 1345828339 is a prime.

It is a super-2 number, since 2×1345828851² = 3622510592367960402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345828797 and 1345828806.

It is not an unprimeable number, because it can be changed into a prime (1345828853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 487305 + ... + 490058.

Almost surely, 2^1345828851 is an apocalyptic number.

1345828851 is a deficient number, since it is larger than the sum of its proper divisors (782869941).

1345828851 is an equidigital number, since it uses as much as digits as its factorization.

1345828851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977392 (or 977383 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 1345828851 is about 36685.5400805276. The cubic root of 1345828851 is about 1104.0700053080.

The spelling of 1345828851 in words is "one billion, three hundred forty-five million, eight hundred twenty-eight thousand, eight hundred fifty-one".