123173461 has 2 divisors, whose sum is σ = 123173462. Its totient is φ = 123173460.

The previous prime is 123173459. The next prime is 123173489. The reversal of 123173461 is 164371321.

It is an a-pointer prime, because the next prime (123173489) can be obtained adding 123173461 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 39450961 = 9150^2 + 6281^2 .

It is a cyclic number.

It is not a de Polignac number, because 123173461 - 2¹ = 123173459 is a prime.

Together with 123173459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123173761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61586730 + 61586731.

It is an arithmetic number, because the mean of its divisors is an integer number (61586731).

Almost surely, 2^123173461 is an apocalyptic number.

It is an amenable number.

123173461 is a deficient number, since it is larger than the sum of its proper divisors (1).

123173461 is an equidigital number, since it uses as much as digits as its factorization.

123173461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 123173461 is about 11098.3539770544. The cubic root of 123173461 is about 497.5526552182.

The spelling of 123173461 in words is "one hundred twenty-three million, one hundred seventy-three thousand, four hundred sixty-one".