1290536 has 16 divisors (see below), whose sum is σ = 2606100. Its totient is φ = 595584.

The previous prime is 1290533. The next prime is 1290539. The reversal of 1290536 is 6350921.

It is an interprime number because it is at equal distance from previous prime (1290533) and next prime (1290539).

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 302500 = 994^2 + 550^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1290533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6101 + ... + 6308.

2^1290536 is an apocalyptic number.

It is an amenable number.

1290536 is an abundant number, since it is smaller than the sum of its proper divisors (1315564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290536 is a wasteful number, since it uses less digits than its factorization.

1290536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12428 (or 12424 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1290536 is about 1136.0176054974. The cubic root of 1290536 is about 108.8737983314.

The spelling of 1290536 in words is "one million, two hundred ninety thousand, five hundred thirty-six".