1342987 has 2 divisors, whose sum is σ = 1342988. Its totient is φ = 1342986.

The previous prime is 1342973. The next prime is 1343003. The reversal of 1342987 is 7892431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342987 is a prime.

It is a super-2 number, since 2×1342987² = 3607228164338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1342907) 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 as a sum of consecutive naturals, namely, 671493 + 671494.

It is an arithmetic number, because the mean of its divisors is an integer number (671494).

2^1342987 is an apocalyptic number.

1342987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342987 is an equidigital number, since it uses as much as digits as its factorization.

1342987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 1342987 is about 1158.8731595822. The cubic root of 1342987 is about 110.3292339933.

The spelling of 1342987 in words is "one million, three hundred forty-two thousand, nine hundred eighty-seven".