109348261 has 4 divisors (see below), whose sum is σ = 119289024. Its totient is φ = 99407500.

The previous prime is 109348259. The next prime is 109348277. The reversal of 109348261 is 162843901.

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 109348261 - 2¹ = 109348259 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 (109348861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4970365 + ... + 4970386.

It is an arithmetic number, because the mean of its divisors is an integer number (29822256).

Almost surely, 2^109348261 is an apocalyptic number.

109348261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109348261 is the 4677-th centered decagonal number.

It is an amenable number.

109348261 is a deficient number, since it is larger than the sum of its proper divisors (9940763).

109348261 is an equidigital number, since it uses as much as digits as its factorization.

109348261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940762.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 109348261 is about 10456.9718848240. The cubic root of 109348261 is about 478.1938211897.

The spelling of 109348261 in words is "one hundred nine million, three hundred forty-eight thousand, two hundred sixty-one".