123863081 has 4 divisors (see below), whose sum is σ = 123886464. Its totient is φ = 123839700.

The previous prime is 123863063. The next prime is 123863099. The reversal of 123863081 is 180368321.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (123863063) and next prime (123863099).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123863081 is a prime.

It is a super-2 number, since 2×123863081² = 30684125669625122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123863041) 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, 476 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (30971616).

Almost surely, 2^123863081 is an apocalyptic number.

It is an amenable number.

123863081 is a deficient number, since it is larger than the sum of its proper divisors (23383).

123863081 is an equidigital number, since it uses as much as digits as its factorization.

123863081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 123863081 is about 11129.3791830452. The cubic root of 123863081 is about 498.4794887784.

The spelling of 123863081 in words is "one hundred twenty-three million, eight hundred sixty-three thousand, eighty-one".