108262561 has 4 divisors (see below), whose sum is σ = 118104624. Its totient is φ = 98420500.

The previous prime is 108262549. The next prime is 108262619. The reversal of 108262561 is 165262801.

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, and also an emirpimes, since its reverse is a distinct semiprime: 165262801 = 11 ⋅15023891.

It is a cyclic number.

It is not a de Polignac number, because 108262561 - 2⁵ = 108262529 is a prime.

It is a super-2 number, since 2×108262561² = 23441564228557442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (108265561) 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, 4921015 + ... + 4921036.

It is an arithmetic number, because the mean of its divisors is an integer number (29526156).

Almost surely, 2^108262561 is an apocalyptic number.

108262561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108262561 is a deficient number, since it is larger than the sum of its proper divisors (9842063).

108262561 is an equidigital number, since it uses as much as digits as its factorization.

108262561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842062.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 108262561 is about 10404.9296489693. The cubic root of 108262561 is about 476.6059195792.

The spelling of 108262561 in words is "one hundred eight million, two hundred sixty-two thousand, five hundred sixty-one".