624113101 has 4 divisors (see below), whose sum is σ = 626791932. Its totient is φ = 621434272.

The previous prime is 624113099. The next prime is 624113117. The reversal of 624113101 is 101311426.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101311426 = 2 ⋅50655713.

It can be written as a sum of positive squares in 2 ways, for example, as 44555625 + 579557476 = 6675^2 + 24074^2 .

It is a cyclic number.

It is not a de Polignac number, because 624113101 - 2¹ = 624113099 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 (624113801) 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, 1339066 + ... + 1339531.

It is an arithmetic number, because the mean of its divisors is an integer number (156697983).

Almost surely, 2^624113101 is an apocalyptic number.

It is an amenable number.

624113101 is a deficient number, since it is larger than the sum of its proper divisors (2678831).

624113101 is a wasteful number, since it uses less digits than its factorization.

624113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678830.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 624113101 is about 24982.2557228125. The cubic root of 624113101 is about 854.5833616362.

Adding to 624113101 its reverse (101311426), we get a palindrome (725424527).

The spelling of 624113101 in words is "six hundred twenty-four million, one hundred thirteen thousand, one hundred one".