130019924 has 12 divisors (see below), whose sum is σ = 233684724. Its totient is φ = 63252864.

The previous prime is 130019899. The next prime is 130019951. The reversal of 130019924 is 429910031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 110923024 + 19096900 = 10532^2 + 4370^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439109 + ... + 439404.

It is an arithmetic number, because the mean of its divisors is an integer number (19473727).

Almost surely, 2^130019924 is an apocalyptic number.

It is an amenable number.

130019924 is a deficient number, since it is larger than the sum of its proper divisors (103664800).

130019924 is a wasteful number, since it uses less digits than its factorization.

130019924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878554 (or 878552 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 130019924 is about 11402.6279427157. The cubic root of 130019924 is about 506.6055803162.

Adding to 130019924 its reverse (429910031), we get a palindrome (559929955).

The spelling of 130019924 in words is "one hundred thirty million, nineteen thousand, nine hundred twenty-four".