123055261 has 8 divisors (see below), whose sum is σ = 140705024. Its totient is φ = 105423120.

The previous prime is 123055249. The next prime is 123055277. The reversal of 123055261 is 162550321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123055261 - 2¹³ = 123047069 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 (123055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18556 + ... + 24298.

It is an arithmetic number, because the mean of its divisors is an integer number (17588128).

Almost surely, 2^123055261 is an apocalyptic number.

It is an amenable number.

123055261 is a deficient number, since it is larger than the sum of its proper divisors (17649763).

123055261 is an equidigital number, since it uses as much as digits as its factorization.

123055261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 123055261 is about 11093.0275849292. The cubic root of 123055261 is about 497.3934500739.

The spelling of 123055261 in words is "one hundred twenty-three million, fifty-five thousand, two hundred sixty-one".