1288061 has 2 divisors, whose sum is σ = 1288062. Its totient is φ = 1288060.

The previous prime is 1288057. The next prime is 1288099. The reversal of 1288061 is 1608821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755161 + 532900 = 869^2 + 730^2 .

It is an emirp because it is prime and its reverse (1608821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1288061 - 2² = 1288057 is a prime.

It is a super-2 number, since 2×1288061² = 3318202279442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1288061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1288051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644030 + 644031.

It is an arithmetic number, because the mean of its divisors is an integer number (644031).

2^1288061 is an apocalyptic number.

It is an amenable number.

1288061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288061 is an equidigital number, since it uses as much as digits as its factorization.

1288061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1288061 is about 1134.9277510044. The cubic root of 1288061 is about 108.8041541180.

The spelling of 1288061 in words is "one million, two hundred eighty-eight thousand, sixty-one".