1162531 has 4 divisors (see below), whose sum is σ = 1200064. Its totient is φ = 1125000.

The previous prime is 1162529. The next prime is 1162537. The reversal of 1162531 is 1352611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1352611 = 13 ⋅104047.

It is a 6-Lehmer number, since φ(1162531) divides (1162531-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 1162531 - 2¹ = 1162529 is a prime.

It is a super-2 number, since 2×1162531² = 2702956651922, which contains 22 as substring.

It is a Duffinian number.

1162531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1162499 and 1162508.

It is not an unprimeable number, because it can be changed into a prime (1162537) 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, 18720 + ... + 18781.

It is an arithmetic number, because the mean of its divisors is an integer number (300016).

2^1162531 is an apocalyptic number.

1162531 is a deficient number, since it is larger than the sum of its proper divisors (37533).

1162531 is an equidigital number, since it uses as much as digits as its factorization.

1162531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37532.

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

The square root of 1162531 is about 1078.2073084523. The cubic root of 1162531 is about 105.1481205064.

The spelling of 1162531 in words is "one million, one hundred sixty-two thousand, five hundred thirty-one".