1345851 has 12 divisors (see below), whose sum is σ = 2093728. Its totient is φ = 828144.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345851 is 1585431.

It is not a de Polignac number, because 1345851 - 2⁶ = 1345787 is a prime.

It is a super-2 number, since 2×1345851² = 3622629828402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5635 + ... + 5868.

2^1345851 is an apocalyptic number.

1345851 is a deficient number, since it is larger than the sum of its proper divisors (747877).

1345851 is a wasteful number, since it uses less digits than its factorization.

1345851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522 (or 11519 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1345851 is about 1160.1081846104. The cubic root of 1345851 is about 110.4076062025.

The spelling of 1345851 in words is "one million, three hundred forty-five thousand, eight hundred fifty-one".