1262553 has 4 divisors (see below), whose sum is σ = 1683408. Its totient is φ = 841700.

The previous prime is 1262543. The next prime is 1262557. The reversal of 1262553 is 3552621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3552621 = 3 ⋅1184207.

It is a cyclic number.

It is not a de Polignac number, because 1262553 - 2¹² = 1258457 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1262557) 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, 210423 + ... + 210428.

It is an arithmetic number, because the mean of its divisors is an integer number (420852).

2^1262553 is an apocalyptic number.

It is an amenable number.

1262553 is a deficient number, since it is larger than the sum of its proper divisors (420855).

1262553 is an equidigital number, since it uses as much as digits as its factorization.

1262553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420854.

The product of its digits is 1800, while the sum is 24.

The square root of 1262553 is about 1123.6338371551. The cubic root of 1262553 is about 108.0811290273.

The spelling of 1262553 in words is "one million, two hundred sixty-two thousand, five hundred fifty-three".