1126531 has 4 divisors (see below), whose sum is σ = 1287472. Its totient is φ = 965592.

The previous prime is 1126523. The next prime is 1126537. The reversal of 1126531 is 1356211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1356211 = 193 ⋅7027.

It is a cyclic number.

It is not a de Polignac number, because 1126531 - 2³ = 1126523 is a prime.

It is a super-2 number, since 2×1126531² = 2538144187922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1126499 and 1126508.

It is not an unprimeable number, because it can be changed into a prime (1126537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80460 + ... + 80473.

It is an arithmetic number, because the mean of its divisors is an integer number (321868).

2^1126531 is an apocalyptic number.

1126531 is a deficient number, since it is larger than the sum of its proper divisors (160941).

1126531 is an equidigital number, since it uses as much as digits as its factorization.

1126531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160940.

The product of its digits is 180, while the sum is 19.

The square root of 1126531 is about 1061.3816467228. The cubic root of 1126531 is about 104.0513491495.

The spelling of 1126531 in words is "one million, one hundred twenty-six thousand, five hundred thirty-one".