124145121 has 8 divisors (see below), whose sum is σ = 167387040. Its totient is φ = 81833312.

The previous prime is 124145117. The next prime is 124145123. The reversal of 124145121 is 121541421.

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

It is a cyclic number.

It is not a de Polignac number, because 124145121 - 2² = 124145117 is a prime.

It is a super-2 number, since 2×124145121² = 30824022136209282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (124145123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232215 + ... + 232748.

It is an arithmetic number, because the mean of its divisors is an integer number (20923380).

Almost surely, 2^124145121 is an apocalyptic number.

It is an amenable number.

124145121 is a deficient number, since it is larger than the sum of its proper divisors (43241919).

124145121 is an equidigital number, since it uses as much as digits as its factorization.

124145121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465055.

The product of its digits is 320, while the sum is 21.

The square root of 124145121 is about 11142.0429455284. The cubic root of 124145121 is about 498.8575529510.

Adding to 124145121 its reverse (121541421), we get a palindrome (245686542).

The spelling of 124145121 in words is "one hundred twenty-four million, one hundred forty-five thousand, one hundred twenty-one".