1292825 has 6 divisors (see below), whose sum is σ = 1603134. Its totient is φ = 1034240.

The previous prime is 1292813. The next prime is 1292831. The reversal of 1292825 is 5282921.

It can be written as a sum of positive squares in 3 ways, for example, as 143641 + 1149184 = 379^2 + 1072^2 .

It is not a de Polignac number, because 1292825 - 2¹⁴ = 1276441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25832 + ... + 25881.

It is an arithmetic number, because the mean of its divisors is an integer number (267189).

2^1292825 is an apocalyptic number.

It is an amenable number.

1292825 is a deficient number, since it is larger than the sum of its proper divisors (310309).

1292825 is an equidigital number, since it uses as much as digits as its factorization.

1292825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51723 (or 51718 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 1292825 is about 1137.0246259426. The cubic root of 1292825 is about 108.9381294642.

The spelling of 1292825 in words is "one million, two hundred ninety-two thousand, eight hundred twenty-five".