108531061 has 4 divisors (see below), whose sum is σ = 109312000. Its totient is φ = 107750124.

The previous prime is 108531019. The next prime is 108531083. The reversal of 108531061 is 160135801.

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 a de Polignac number, because none of the positive numbers 2^k-108531061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108531001) 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, 390261 + ... + 390538.

It is an arithmetic number, because the mean of its divisors is an integer number (27328000).

Almost surely, 2^108531061 is an apocalyptic number.

It is an amenable number.

108531061 is a deficient number, since it is larger than the sum of its proper divisors (780939).

108531061 is an equidigital number, since it uses as much as digits as its factorization.

108531061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780938.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 108531061 is about 10417.8241970193. The cubic root of 108531061 is about 476.9996015157. Note that the first 3 decimals are identical.

Adding to 108531061 its reverse (160135801), we get a palindrome (268666862).

The spelling of 108531061 in words is "one hundred eight million, five hundred thirty-one thousand, sixty-one".