123460291 has 2 divisors, whose sum is σ = 123460292. Its totient is φ = 123460290.

The previous prime is 123460289. The next prime is 123460319. The reversal of 123460291 is 192064321.

It is an a-pointer prime, because the next prime (123460319) can be obtained adding 123460291 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123460291 - 2¹ = 123460289 is a prime.

Together with 123460289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123460201) 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, 61730145 + 61730146.

It is an arithmetic number, because the mean of its divisors is an integer number (61730146).

Almost surely, 2^123460291 is an apocalyptic number.

123460291 is a deficient number, since it is larger than the sum of its proper divisors (1).

123460291 is an equidigital number, since it uses as much as digits as its factorization.

123460291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 123460291 is about 11111.2686494387. The cubic root of 123460291 is about 497.9385673375.

The spelling of 123460291 in words is "one hundred twenty-three million, four hundred sixty thousand, two hundred ninety-one".