123046591 has 2 divisors, whose sum is σ = 123046592. Its totient is φ = 123046590.

The previous prime is 123046589. The next prime is 123046631. The reversal of 123046591 is 195640321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123046591 - 2¹ = 123046589 is a prime.

Together with 123046589, 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 (123046691) 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, 61523295 + 61523296.

It is an arithmetic number, because the mean of its divisors is an integer number (61523296).

Almost surely, 2^123046591 is an apocalyptic number.

123046591 is a deficient number, since it is larger than the sum of its proper divisors (1).

123046591 is an equidigital number, since it uses as much as digits as its factorization.

123046591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 123046591 is about 11092.6367920346. The cubic root of 123046591 is about 497.3817683236.

The spelling of 123046591 in words is "one hundred twenty-three million, forty-six thousand, five hundred ninety-one".