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1282961 is a prime number
BaseRepresentation
bin100111001001110010001
32102011220002
410321032101
5312023321
643255345
713622261
oct4711621
92364802
101282961
117a69a9
1251a555
1335bc64
142557a1
151a520b
hex139391

1282961 has 2 divisors, whose sum is σ = 1282962. Its totient is φ = 1282960.

The previous prime is 1282951. The next prime is 1282969. The reversal of 1282961 is 1692821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 28561 = 1120^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282961 - 210 = 1281937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641480 + 641481.

It is an arithmetic number, because the mean of its divisors is an integer number (641481).

21282961 is an apocalyptic number.

It is an amenable number.

1282961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282961 is an equidigital number, since it uses as much as digits as its factorization.

1282961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 1282961 is about 1132.6786834756. The cubic root of 1282961 is about 108.6603630069.

The spelling of 1282961 in words is "one million, two hundred eighty-two thousand, nine hundred sixty-one".