1292656 has 20 divisors (see below), whose sum is σ = 2524392. Its totient is φ = 641216.

The previous prime is 1292653. The next prime is 1292657. The reversal of 1292656 is 6562921.

1292656 is a Rhonda number in base 10.

Its product of digits (6480) is a multiple of the sum of its prime factors (648).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2535 + ... + 3001.

2^1292656 is an apocalyptic number.

1292656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1292656 is a deficient number, since it is larger than the sum of its proper divisors (1231736).

1292656 is a wasteful number, since it uses less digits than its factorization.

1292656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 642 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 1292656 is about 1136.9503067417. The cubic root of 1292656 is about 108.9333824061.

The spelling of 1292656 in words is "one million, two hundred ninety-two thousand, six hundred fifty-six".