123787471 has 2 divisors, whose sum is σ = 123787472. Its totient is φ = 123787470.

The previous prime is 123787439. The next prime is 123787501. The reversal of 123787471 is 174787321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123787471 - 2⁵ = 123787439 is a prime.

It is a super-3 number, since 3×123787471³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123787571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61893735 + 61893736.

It is an arithmetic number, because the mean of its divisors is an integer number (61893736).

Almost surely, 2^123787471 is an apocalyptic number.

123787471 is a deficient number, since it is larger than the sum of its proper divisors (1).

123787471 is an equidigital number, since it uses as much as digits as its factorization.

123787471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 40.

The square root of 123787471 is about 11125.9817993739. The cubic root of 123787471 is about 498.3780388400.

The spelling of 123787471 in words is "one hundred twenty-three million, seven hundred eighty-seven thousand, four hundred seventy-one".