106112561 has 4 divisors (see below), whose sum is σ = 106155072. Its totient is φ = 106070052.

The previous prime is 106112527. The next prime is 106112579. The reversal of 106112561 is 165211601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106112561 - 2⁶ = 106112497 is a prime.

It is a super-2 number, since 2×106112561² = 22519751203957442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106115561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17261 + ... + 22586.

It is an arithmetic number, because the mean of its divisors is an integer number (26538768).

Almost surely, 2^106112561 is an apocalyptic number.

It is an amenable number.

106112561 is a deficient number, since it is larger than the sum of its proper divisors (42511).

106112561 is an equidigital number, since it uses as much as digits as its factorization.

106112561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42510.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 106112561 is about 10301.0951359552. The cubic root of 106112561 is about 473.4298083564.

The spelling of 106112561 in words is "one hundred six million, one hundred twelve thousand, five hundred sixty-one".