1345387 has 4 divisors (see below), whose sum is σ = 1357840. Its totient is φ = 1332936.

The previous prime is 1345361. The next prime is 1345423. The reversal of 1345387 is 7835431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1345387 - 2¹⁹ = 821099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063 + ... + 6280.

It is an arithmetic number, because the mean of its divisors is an integer number (339460).

2^1345387 is an apocalyptic number.

1345387 is a deficient number, since it is larger than the sum of its proper divisors (12453).

1345387 is a wasteful number, since it uses less digits than its factorization.

1345387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

The product of its digits is 10080, while the sum is 31.

The square root of 1345387 is about 1159.9081860216. The cubic root of 1345387 is about 110.3949165814.

The spelling of 1345387 in words is "one million, three hundred forty-five thousand, three hundred eighty-seven".