123375577 has 6 divisors (see below), whose sum is σ = 133596222. Its totient is φ = 113884992.

The previous prime is 123375533. The next prime is 123375583. The reversal of 123375577 is 775573321.

It can be written as a sum of positive squares in 3 ways, for example, as 7080921 + 116294656 = 2661^2 + 10784^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123375577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123375377) 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 in 5 ways as a sum of consecutive naturals, for example, 364848 + ... + 365185.

It is an arithmetic number, because the mean of its divisors is an integer number (22266037).

Almost surely, 2^123375577 is an apocalyptic number.

It is an amenable number.

123375577 is a deficient number, since it is larger than the sum of its proper divisors (10220645).

123375577 is an equidigital number, since it uses as much as digits as its factorization.

123375577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730059 (or 730046 counting only the distinct ones).

The product of its digits is 154350, while the sum is 40.

The square root of 123375577 is about 11107.4559193363. The cubic root of 123375577 is about 497.8246521152.

The spelling of 123375577 in words is "one hundred twenty-three million, three hundred seventy-five thousand, five hundred seventy-seven".