123401767 has 2 divisors, whose sum is σ = 123401768. Its totient is φ = 123401766.

The previous prime is 123401753. The next prime is 123401779. The reversal of 123401767 is 767104321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123401767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123401737) 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, 61700883 + 61700884.

It is an arithmetic number, because the mean of its divisors is an integer number (61700884).

Almost surely, 2^123401767 is an apocalyptic number.

123401767 is a deficient number, since it is larger than the sum of its proper divisors (1).

123401767 is an equidigital number, since it uses as much as digits as its factorization.

123401767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 123401767 is about 11108.6347946091. The cubic root of 123401767 is about 497.8598754701.

The spelling of 123401767 in words is "one hundred twenty-three million, four hundred one thousand, seven hundred sixty-seven".