1040551 has 4 divisors (see below), whose sum is σ = 1068712. Its totient is φ = 1012392.

The previous prime is 1040531. The next prime is 1040563. The reversal of 1040551 is 1550401.

It is a happy number.

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 1040551 - 2¹¹ = 1038503 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 (1040521) 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, 14025 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (267178).

2^1040551 is an apocalyptic number.

1040551 is a deficient number, since it is larger than the sum of its proper divisors (28161).

1040551 is an equidigital number, since it uses as much as digits as its factorization.

1040551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28160.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1040551 is about 1020.0740169223. The cubic root of 1040551 is about 101.3338298779. Note that the first 3 decimals are identical.

Adding to 1040551 its reverse (1550401), we get a palindrome (2590952).

The spelling of 1040551 in words is "one million, forty thousand, five hundred fifty-one".