Search a number
-
+
1342871 is a prime number
BaseRepresentation
bin101000111110110010111
32112020001222
411013312113
5320432441
644440555
714262035
oct5076627
92466058
101342871
11837a12
1254915b
133802ca
1426d555
151b7d4b
hex147d97

1342871 has 2 divisors, whose sum is σ = 1342872. Its totient is φ = 1342870.

The previous prime is 1342849. The next prime is 1342877. The reversal of 1342871 is 1782431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1342871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1342871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342877) 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, 671435 + 671436.

It is an arithmetic number, because the mean of its divisors is an integer number (671436).

21342871 is an apocalyptic number.

1342871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342871 is an equidigital number, since it uses as much as digits as its factorization.

1342871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 1342871 is about 1158.8231098835. The cubic root of 1342871 is about 110.3260573530.

The spelling of 1342871 in words is "one million, three hundred forty-two thousand, eight hundred seventy-one".