1553268 has 12 divisors (see below), whose sum is σ = 3624320. Its totient is φ = 517752.

The previous prime is 1553249. The next prime is 1553281. The reversal of 1553268 is 8623551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64708 + ... + 64731.

2^1553268 is an apocalyptic number.

It is an amenable number.

1553268 is an abundant number, since it is smaller than the sum of its proper divisors (2071052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1553268 is a wasteful number, since it uses less digits than its factorization.

1553268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129446 (or 129444 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 1553268 is about 1246.3017291170. The cubic root of 1553268 is about 115.8107297935.

The spelling of 1553268 in words is "one million, five hundred fifty-three thousand, two hundred sixty-eight".