1292885 has 12 divisors (see below), whose sum is σ = 1706124. Its totient is φ = 939840.

The previous prime is 1292857. The next prime is 1292887. The reversal of 1292885 is 5882921.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 1069156 = 473^2 + 1034^2 .

It is not a de Polignac number, because 1292885 - 2¹⁰ = 1291861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292887) 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, 464 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (142177).

2^1292885 is an apocalyptic number.

It is an amenable number.

1292885 is a deficient number, since it is larger than the sum of its proper divisors (413239).

1292885 is a wasteful number, since it uses less digits than its factorization.

1292885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164 (or 2153 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 1292885 is about 1137.0510102893. The cubic root of 1292885 is about 108.9398147108.

The spelling of 1292885 in words is "one million, two hundred ninety-two thousand, eight hundred eighty-five".