1140531 has 8 divisors (see below), whose sum is σ = 1737984. Its totient is φ = 651720.

The previous prime is 1140493. The next prime is 1140533. The reversal of 1140531 is 1350411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1140531 - 2¹¹ = 1138483 is a prime.

It is a super-2 number, since 2×1140531² = 2601621923922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1140531.

It is not an unprimeable number, because it can be changed into a prime (1140533) 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 7 ways as a sum of consecutive naturals, for example, 27135 + ... + 27176.

It is an arithmetic number, because the mean of its divisors is an integer number (217248).

2^1140531 is an apocalyptic number.

1140531 is a deficient number, since it is larger than the sum of its proper divisors (597453).

1140531 is an equidigital number, since it uses as much as digits as its factorization.

1140531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54321.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1140531 is about 1067.9564597866. The cubic root of 1140531 is about 104.4806096361.

Adding to 1140531 its reverse (1350411), we get a palindrome (2490942).

The spelling of 1140531 in words is "one million, one hundred forty thousand, five hundred thirty-one".