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1341287 = 3736251
BaseRepresentation
bin101000111011101100111
32112010220022
411013131213
5320410122
644425355
714254313
oct5073547
92463808
101341287
11836802
1254825b
1337c67c
1426cb43
151b7642
hex147767

1341287 has 4 divisors (see below), whose sum is σ = 1377576. Its totient is φ = 1305000.

The previous prime is 1341259. The next prime is 1341293. The reversal of 1341287 is 7821431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7821431 = 71110161.

It is a cyclic number.

It is not a de Polignac number, because 1341287 - 216 = 1275751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341217) 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 3 ways as a sum of consecutive naturals, for example, 18089 + ... + 18162.

It is an arithmetic number, because the mean of its divisors is an integer number (344394).

21341287 is an apocalyptic number.

1341287 is a deficient number, since it is larger than the sum of its proper divisors (36289).

1341287 is an equidigital number, since it uses as much as digits as its factorization.

1341287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36288.

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

The square root of 1341287 is about 1158.1394561969. The cubic root of 1341287 is about 110.2826614667.

The spelling of 1341287 in words is "one million, three hundred forty-one thousand, two hundred eighty-seven".

Divisors: 1 37 36251 1341287