123823577 has 2 divisors, whose sum is σ = 123823578. Its totient is φ = 123823576.

The previous prime is 123823561. The next prime is 123823639. The reversal of 123823577 is 775328321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104366656 + 19456921 = 10216^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 123823577 - 2⁴ = 123823561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123823577.

It is not a weakly prime, because it can be changed into another prime (123823547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61911788 + 61911789.

It is an arithmetic number, because the mean of its divisors is an integer number (61911789).

Almost surely, 2^123823577 is an apocalyptic number.

It is an amenable number.

123823577 is a deficient number, since it is larger than the sum of its proper divisors (1).

123823577 is an equidigital number, since it uses as much as digits as its factorization.

123823577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 123823577 is about 11127.6042794485. The cubic root of 123823577 is about 498.4264893228.

The spelling of 123823577 in words is "one hundred twenty-three million, eight hundred twenty-three thousand, five hundred seventy-seven".