108761961 has 16 divisors (see below), whose sum is σ = 180799488. Its totient is φ = 56499600.

The previous prime is 108761881. The next prime is 108761993. The reversal of 108761961 is 169167801.

It is not a de Polignac number, because 108761961 - 2⁹ = 108761449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108761761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235185 + ... + 235646.

It is an arithmetic number, because the mean of its divisors is an integer number (11299968).

Almost surely, 2^108761961 is an apocalyptic number.

108761961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108761961 is a deficient number, since it is larger than the sum of its proper divisors (72037527).

108761961 is a wasteful number, since it uses less digits than its factorization.

108761961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470852.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 108761961 is about 10428.9002775940. The cubic root of 108761961 is about 477.3376343702.

The spelling of 108761961 in words is "one hundred eight million, seven hundred sixty-one thousand, nine hundred sixty-one".