109260261 has 12 divisors (see below), whose sum is σ = 172167840. Its totient is φ = 66218280.

The previous prime is 109260257. The next prime is 109260269. The reversal of 109260261 is 162062901.

It is not a de Polignac number, because 109260261 - 2² = 109260257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109260269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 551721 + ... + 551918.

It is an arithmetic number, because the mean of its divisors is an integer number (14347320).

Almost surely, 2^109260261 is an apocalyptic number.

109260261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109260261 is a deficient number, since it is larger than the sum of its proper divisors (62907579).

109260261 is a wasteful number, since it uses less digits than its factorization.

109260261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103656 (or 1103653 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 109260261 is about 10452.7633188550. The cubic root of 109260261 is about 478.0655083739.

The spelling of 109260261 in words is "one hundred nine million, two hundred sixty thousand, two hundred sixty-one".