1292625 has 32 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 687600.

The previous prime is 1292609. The next prime is 1292633. The reversal of 1292625 is 5262921.

It is not a de Polignac number, because 1292625 - 2⁴ = 1292609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

1292625 is a lucky 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 31 ways as a sum of consecutive naturals, for example, 3184 + ... + 3566.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^1292625 is an apocalyptic number.

1292625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1292625 is a deficient number, since it is larger than the sum of its proper divisors (1103535).

1292625 is an equidigital number, since it uses as much as digits as its factorization.

1292625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 391 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1292625 is about 1136.9366736982. The cubic root of 1292625 is about 108.9325115991.

The spelling of 1292625 in words is "one million, two hundred ninety-two thousand, six hundred twenty-five".