123828461 has 2 divisors, whose sum is σ = 123828462. Its totient is φ = 123828460.

The previous prime is 123828457. The next prime is 123828563. The reversal of 123828461 is 164828321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88247236 + 35581225 = 9394^2 + 5965^2 .

It is a cyclic number.

It is not a de Polignac number, because 123828461 - 2² = 123828457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123828401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61914230 + 61914231.

It is an arithmetic number, because the mean of its divisors is an integer number (61914231).

Almost surely, 2^123828461 is an apocalyptic number.

It is an amenable number.

123828461 is a deficient number, since it is larger than the sum of its proper divisors (1).

123828461 is an equidigital number, since it uses as much as digits as its factorization.

123828461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The square root of 123828461 is about 11127.8237315299. The cubic root of 123828461 is about 498.4330424178.

The spelling of 123828461 in words is "one hundred twenty-three million, eight hundred twenty-eight thousand, four hundred sixty-one".