124921141 has 4 divisors (see below), whose sum is σ = 125315532. Its totient is φ = 124526752.

The previous prime is 124921129. The next prime is 124921169. The reversal of 124921141 is 141129421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18232900 + 106688241 = 4270^2 + 10329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124921141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124921541) 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, 196720 + ... + 197353.

It is an arithmetic number, because the mean of its divisors is an integer number (31328883).

Almost surely, 2^124921141 is an apocalyptic number.

It is an amenable number.

124921141 is a deficient number, since it is larger than the sum of its proper divisors (394391).

124921141 is an equidigital number, since it uses as much as digits as its factorization.

124921141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394390.

The product of its digits is 576, while the sum is 25.

The square root of 124921141 is about 11176.8126494095. The cubic root of 124921141 is about 499.8948325478.

The spelling of 124921141 in words is "one hundred twenty-four million, nine hundred twenty-one thousand, one hundred forty-one".