123755457 has 8 divisors (see below), whose sum is σ = 188579776. Its totient is φ = 70717392.

The previous prime is 123755447. The next prime is 123755501. The reversal of 123755457 is 754557321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123755457 - 2⁷ = 123755329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123755447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2946538 + ... + 2946579.

It is an arithmetic number, because the mean of its divisors is an integer number (23572472).

Almost surely, 2^123755457 is an apocalyptic number.

It is an amenable number.

123755457 is a deficient number, since it is larger than the sum of its proper divisors (64824319).

123755457 is an equidigital number, since it uses as much as digits as its factorization.

123755457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893127.

The product of its digits is 147000, while the sum is 39.

The square root of 123755457 is about 11124.5430018496. The cubic root of 123755457 is about 498.3350715131.

The spelling of 123755457 in words is "one hundred twenty-three million, seven hundred fifty-five thousand, four hundred fifty-seven".