1292561 has 8 divisors (see below), whose sum is σ = 1380960. Its totient is φ = 1205568.

The previous prime is 1292549. The next prime is 1292563. The reversal of 1292561 is 1652921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1292561 - 2¹⁸ = 1030417 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1292561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 2636.

It is an arithmetic number, because the mean of its divisors is an integer number (172620).

2^1292561 is an apocalyptic number.

It is an amenable number.

1292561 is a deficient number, since it is larger than the sum of its proper divisors (88399).

1292561 is a wasteful number, since it uses less digits than its factorization.

1292561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its digits is 1080, while the sum is 26.

The square root of 1292561 is about 1136.9085275430. The cubic root of 1292561 is about 108.9307137598.

The spelling of 1292561 in words is "one million, two hundred ninety-two thousand, five hundred sixty-one".