123578467 has 2 divisors, whose sum is σ = 123578468. Its totient is φ = 123578466.

The previous prime is 123578447. The next prime is 123578501. The reversal of 123578467 is 764875321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123578467 - 2⁷ = 123578339 is a prime.

It is not a weakly prime, because it can be changed into another prime (123578407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61789233 + 61789234.

It is an arithmetic number, because the mean of its divisors is an integer number (61789234).

Almost surely, 2^123578467 is an apocalyptic number.

123578467 is a deficient number, since it is larger than the sum of its proper divisors (1).

123578467 is an equidigital number, since it uses as much as digits as its factorization.

123578467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 123578467 is about 11116.5852220905. The cubic root of 123578467 is about 498.0973920154.

The spelling of 123578467 in words is "one hundred twenty-three million, five hundred seventy-eight thousand, four hundred sixty-seven".