1290562 has 24 divisors (see below), whose sum is σ = 2427516. Its totient is φ = 510048.

The previous prime is 1290551. The next prime is 1290563. The reversal of 1290562 is 2650921.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 370881 = 959^2 + 609^2 .

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1290563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 768 + ... + 1780.

2^1290562 is an apocalyptic number.

1290562 is a deficient number, since it is larger than the sum of its proper divisors (1136954).

1290562 is a wasteful number, since it uses less digits than its factorization.

1290562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1290562 is about 1136.0290489244. The cubic root of 1290562 is about 108.8745294746.

The spelling of 1290562 in words is "one million, two hundred ninety thousand, five hundred sixty-two".