1342287 has 6 divisors (see below), whose sum is σ = 1938872. Its totient is φ = 894852.

The previous prime is 1342283. The next prime is 1342291. The reversal of 1342287 is 7822431.

It is an interprime number because it is at equal distance from previous prime (1342283) and next prime (1342291).

It is not a de Polignac number, because 1342287 - 2² = 1342283 is a prime.

It is a super-3 number, since 3×1342287³ = 7255333948935701709, which contains 333 as substring.

It is a Duffinian number.

1342287 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1342287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342283) 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 in 5 ways as a sum of consecutive naturals, for example, 74563 + ... + 74580.

2^1342287 is an apocalyptic number.

1342287 is a deficient number, since it is larger than the sum of its proper divisors (596585).

1342287 is a wasteful number, since it uses less digits than its factorization.

1342287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149149 (or 149146 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1342287 is about 1158.5711026950. The cubic root of 1342287 is about 110.3100618330.

The spelling of 1342287 in words is "one million, three hundred forty-two thousand, two hundred eighty-seven".