123538783 has 2 divisors, whose sum is σ = 123538784. Its totient is φ = 123538782.

The previous prime is 123538771. The next prime is 123538801. The reversal of 123538783 is 387835321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123538783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123530783) 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, 61769391 + 61769392.

It is an arithmetic number, because the mean of its divisors is an integer number (61769392).

Almost surely, 2^123538783 is an apocalyptic number.

123538783 is a deficient number, since it is larger than the sum of its proper divisors (1).

123538783 is an equidigital number, since it uses as much as digits as its factorization.

123538783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 123538783 is about 11114.8001781409. The cubic root of 123538783 is about 498.0440693139.

The spelling of 123538783 in words is "one hundred twenty-three million, five hundred thirty-eight thousand, seven hundred eighty-three".