11072531 has 4 divisors (see below), whose sum is σ = 11170632. Its totient is φ = 10974432.

The previous prime is 11072507. The next prime is 11072557. The reversal of 11072531 is 13527011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13527011 = 709 ⋅19079.

It is a cyclic number.

It is not a de Polignac number, because 11072531 - 2¹⁰ = 11071507 is a prime.

It is a super-2 number, since 2×11072531² = 245201885491922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11072431) 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, 48881 + ... + 49106.

It is an arithmetic number, because the mean of its divisors is an integer number (2792658).

Almost surely, 2^11072531 is an apocalyptic number.

11072531 is a deficient number, since it is larger than the sum of its proper divisors (98101).

11072531 is an equidigital number, since it uses as much as digits as its factorization.

11072531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98100.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11072531 is about 3327.5412844922. The cubic root of 11072531 is about 222.8857492199.

Adding to 11072531 its reverse (13527011), we get a palindrome (24599542).

The spelling of 11072531 in words is "eleven million, seventy-two thousand, five hundred thirty-one".