112009531 has 2 divisors, whose sum is σ = 112009532. Its totient is φ = 112009530.

The previous prime is 112009519. The next prime is 112009543. The reversal of 112009531 is 135900211.

It is a balanced prime because it is at equal distance from previous prime (112009519) and next prime (112009543).

It is an emirp because it is prime and its reverse (135900211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112009531 - 2⁹ = 112009019 is a prime.

It is a super-2 number, since 2×112009531² = 25092270069679922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112009591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56004765 + 56004766.

It is an arithmetic number, because the mean of its divisors is an integer number (56004766).

Almost surely, 2^112009531 is an apocalyptic number.

112009531 is a deficient number, since it is larger than the sum of its proper divisors (1).

112009531 is an equidigital number, since it uses as much as digits as its factorization.

112009531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 112009531 is about 10583.4555321029. The cubic root of 112009531 is about 482.0421257007.

Adding to 112009531 its reverse (135900211), we get a palindrome (247909742).

The spelling of 112009531 in words is "one hundred twelve million, nine thousand, five hundred thirty-one".