1036551 has 4 divisors (see below), whose sum is σ = 1382072. Its totient is φ = 691032.

The previous prime is 1036537. The next prime is 1036561. The reversal of 1036551 is 1556301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1556301 = 3 ⋅518767.

It is not a de Polignac number, because 1036551 - 2⁹ = 1036039 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036531) 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, 172756 + ... + 172761.

It is an arithmetic number, because the mean of its divisors is an integer number (345518).

2^1036551 is an apocalyptic number.

1036551 is a deficient number, since it is larger than the sum of its proper divisors (345521).

1036551 is an equidigital number, since it uses as much as digits as its factorization.

1036551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345520.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1036551 is about 1018.1114870190. Note that the first 3 decimals coincide. The cubic root of 1036551 is about 101.2038167672.

The spelling of 1036551 in words is "one million, thirty-six thousand, five hundred fifty-one".