1262551 has 4 divisors (see below), whose sum is σ = 1296712. Its totient is φ = 1228392.

The previous prime is 1262543. The next prime is 1262557. The reversal of 1262551 is 1552621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1262551 - 2³ = 1262543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17025 + ... + 17098.

It is an arithmetic number, because the mean of its divisors is an integer number (324178).

2^1262551 is an apocalyptic number.

1262551 is a deficient number, since it is larger than the sum of its proper divisors (34161).

1262551 is an equidigital number, since it uses as much as digits as its factorization.

1262551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34160.

The product of its digits is 600, while the sum is 22.

The square root of 1262551 is about 1123.6329471852. The cubic root of 1262551 is about 108.0810719571.

The spelling of 1262551 in words is "one million, two hundred sixty-two thousand, five hundred fifty-one".