130001236 has 12 divisors (see below), whose sum is σ = 227591028. Its totient is φ = 64975232.

The previous prime is 130001203. The next prime is 130001251. The reversal of 130001236 is 632100031.

It can be written as a sum of positive squares in 2 ways, for example, as 6791236 + 123210000 = 2606^2 + 11100^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9660 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (18965919).

Almost surely, 2^130001236 is an apocalyptic number.

It is an amenable number.

130001236 is a deficient number, since it is larger than the sum of its proper divisors (97589792).

130001236 is a wasteful number, since it uses less digits than its factorization.

130001236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12698 (or 12696 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130001236 is about 11401.8084530481. The cubic root of 130001236 is about 506.5813073730.

Adding to 130001236 its reverse (632100031), we get a palindrome (762101267).

The spelling of 130001236 in words is "one hundred thirty million, one thousand, two hundred thirty-six".