123000745761 has 6 divisors (see below), whose sum is σ = 177667743890. Its totient is φ = 82000497168.

The previous prime is 123000745669. The next prime is 123000745787. The reversal of 123000745761 is 167547000321.

It is a happy number.

123000745761 is a `hidden beast` number, since 12 + 3 + 0 + 0 + 0 + 74 + 576 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78587712225 + 44413033536 = 280335^2 + 210744^2 .

It is not a de Polignac number, because 123000745761 - 2¹³ = 123000737569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123000765761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6833374756 + ... + 6833374773.

Almost surely, 2^123000745761 is an apocalyptic number.

It is an amenable number.

123000745761 is a deficient number, since it is larger than the sum of its proper divisors (54666998129).

123000745761 is a wasteful number, since it uses less digits than its factorization.

123000745761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666749535 (or 13666749532 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 123000745761 in words is "one hundred twenty-three billion, seven hundred forty-five thousand, seven hundred sixty-one".