124143013 has 8 divisors (see below), whose sum is σ = 127193976. Its totient is φ = 121118400.

The previous prime is 124143007. The next prime is 124143023. The reversal of 124143013 is 310341421.

It can be written as a sum of positive squares in 4 ways, for example, as 10975969 + 113167044 = 3313^2 + 10638^2 .

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 124143013 - 2⁵ = 124142981 is a prime.

It is a super-2 number, since 2×124143013² = 30822975353436338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124143023) 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, 3123 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (15899247).

Almost surely, 2^124143013 is an apocalyptic number.

It is an amenable number.

124143013 is a deficient number, since it is larger than the sum of its proper divisors (3050963).

124143013 is a wasteful number, since it uses less digits than its factorization.

124143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 124143013 is about 11141.9483484712. The cubic root of 124143013 is about 498.8547293800.

Adding to 124143013 its reverse (310341421), we get a palindrome (434484434).

The spelling of 124143013 in words is "one hundred twenty-four million, one hundred forty-three thousand, thirteen".