124640066 has 8 divisors (see below), whose sum is σ = 187204284. Its totient is φ = 62238640.

The previous prime is 124639993. The next prime is 124640077. The reversal of 124640066 is 660046421.

It can be written as a sum of positive squares in 2 ways, for example, as 84254041 + 40386025 = 9179^2 + 6355^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38765 + ... + 41856.

Almost surely, 2^124640066 is an apocalyptic number.

124640066 is a deficient number, since it is larger than the sum of its proper divisors (62564218).

124640066 is an equidigital number, since it uses as much as digits as its factorization.

124640066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81396.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 124640066 is about 11164.2315454311. The cubic root of 124640066 is about 499.5196266307.

Adding to 124640066 its reverse (660046421), we get a palindrome (784686487).

The spelling of 124640066 in words is "one hundred twenty-four million, six hundred forty thousand, sixty-six".