124085081 has 4 divisors (see below), whose sum is σ = 124129152. Its totient is φ = 124041012.

The previous prime is 124085051. The next prime is 124085089. The reversal of 124085081 is 180580421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 180580421 = 7 ⋅25797203.

It is a cyclic number.

It is not a de Polignac number, because 124085081 - 2²² = 119890777 is a prime.

It is a super-2 number, since 2×124085081² = 30794214653553122, 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 (124085089) 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, 17501 + ... + 23546.

It is an arithmetic number, because the mean of its divisors is an integer number (31032288).

Almost surely, 2^124085081 is an apocalyptic number.

It is an amenable number.

124085081 is a deficient number, since it is larger than the sum of its proper divisors (44071).

124085081 is an equidigital number, since it uses as much as digits as its factorization.

124085081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44070.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 124085081 is about 11139.3483202564. The cubic root of 124085081 is about 498.7771195652. Note that the first 3 decimals are identical.

The spelling of 124085081 in words is "one hundred twenty-four million, eighty-five thousand, eighty-one".