1345747 has 6 divisors (see below), whose sum is σ = 1457412. Its totient is φ = 1242072.

The previous prime is 1345733. The next prime is 1345759. The reversal of 1345747 is 7475431.

It is not a de Polignac number, because 1345747 - 2¹⁹ = 821459 is a prime.

It is a super-2 number, since 2×1345747² = 3622069976018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3813 + ... + 4150.

It is an arithmetic number, because the mean of its divisors is an integer number (242902).

2^1345747 is an apocalyptic number.

1345747 is a deficient number, since it is larger than the sum of its proper divisors (111665).

1345747 is an equidigital number, since it uses as much as digits as its factorization.

1345747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989 (or 7976 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 1345747 is about 1160.0633603386. The cubic root of 1345747 is about 110.4047622307.

The spelling of 1345747 in words is "one million, three hundred forty-five thousand, seven hundred forty-seven".