123281461 has 2 divisors, whose sum is σ = 123281462. Its totient is φ = 123281460.

The previous prime is 123281437. The next prime is 123281479. The reversal of 123281461 is 164182321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 38825361 = 9190^2 + 6231^2 .

It is an emirp because it is prime and its reverse (164182321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123281461 - 2⁵ = 123281429 is a prime.

It is equal to p_7017823 and since 123281461 and 7017823 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123288461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61640730 + 61640731.

It is an arithmetic number, because the mean of its divisors is an integer number (61640731).

Almost surely, 2^123281461 is an apocalyptic number.

It is an amenable number.

123281461 is a deficient number, since it is larger than the sum of its proper divisors (1).

123281461 is an equidigital number, since it uses as much as digits as its factorization.

123281461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 123281461 is about 11103.2184973547. The cubic root of 123281461 is about 497.6980328252.

The spelling of 123281461 in words is "one hundred twenty-three million, two hundred eighty-one thousand, four hundred sixty-one".