1345471 has 2 divisors, whose sum is σ = 1345472. Its totient is φ = 1345470.

The previous prime is 1345457. The next prime is 1345481. The reversal of 1345471 is 1745431.

It is a strong prime.

It is an emirp because it is prime and its reverse (1745431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345471 - 2⁷ = 1345343 is a prime.

It is a super-3 number, since 3×1345471³ = 7307087017673766333, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345441) by changing a digit.

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, 672735 + 672736.

It is an arithmetic number, because the mean of its divisors is an integer number (672736).

2^1345471 is an apocalyptic number.

1345471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345471 is an equidigital number, since it uses as much as digits as its factorization.

1345471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 1345471 is about 1159.9443952190. The cubic root of 1345471 is about 110.3972140566.

The spelling of 1345471 in words is "one million, three hundred forty-five thousand, four hundred seventy-one".