123540793 has 4 divisors (see below), whose sum is σ = 130042960. Its totient is φ = 117038628.

The previous prime is 123540761. The next prime is 123540803. The reversal of 123540793 is 397045321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123540793 - 2⁵ = 123540761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123540733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251055 + ... + 3251092.

It is an arithmetic number, because the mean of its divisors is an integer number (32510740).

Almost surely, 2^123540793 is an apocalyptic number.

It is an amenable number.

123540793 is a deficient number, since it is larger than the sum of its proper divisors (6502167).

123540793 is an equidigital number, since it uses as much as digits as its factorization.

123540793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502166.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 123540793 is about 11114.8905977522. The cubic root of 123540793 is about 498.0467703906.

The spelling of 123540793 in words is "one hundred twenty-three million, five hundred forty thousand, seven hundred ninety-three".