124252005 has 16 divisors (see below), whose sum is σ = 198987264. Its totient is φ = 66206400.

The previous prime is 124251991. The next prime is 124252019. The reversal of 124252005 is 500252421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124251991) and next prime (124252019).

It is not a de Polignac number, because 124252005 - 2⁴ = 124251989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16332 + ... + 22698.

It is an arithmetic number, because the mean of its divisors is an integer number (12436704).

Almost surely, 2^124252005 is an apocalyptic number.

124252005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124252005 is a deficient number, since it is larger than the sum of its proper divisors (74735259).

124252005 is a wasteful number, since it uses less digits than its factorization.

124252005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 124252005 is about 11146.8383409826. The cubic root of 124252005 is about 499.0006773725. Note that the first 3 decimals are identical.

The spelling of 124252005 in words is "one hundred twenty-four million, two hundred fifty-two thousand, five".