123229057 has 4 divisors (see below), whose sum is σ = 140833216. Its totient is φ = 105624900.

The previous prime is 123229049. The next prime is 123229087. The reversal of 123229057 is 750922321.

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 123229057 - 2³ = 123229049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123229027) 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, 8802069 + ... + 8802082.

It is an arithmetic number, because the mean of its divisors is an integer number (35208304).

Almost surely, 2^123229057 is an apocalyptic number.

It is an amenable number.

123229057 is a deficient number, since it is larger than the sum of its proper divisors (17604159).

123229057 is an equidigital number, since it uses as much as digits as its factorization.

123229057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17604158.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 123229057 is about 11100.8583902327. The cubic root of 123229057 is about 497.6275029881.

The spelling of 123229057 in words is "one hundred twenty-three million, two hundred twenty-nine thousand, fifty-seven".