7361638131 has 8 divisors (see below), whose sum is σ = 9843643600. Its totient is φ = 4893695712.

The previous prime is 7361638121. The next prime is 7361638157. The reversal of 7361638131 is 1318361637.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7361638131 - 2⁵ = 7361638099 is a prime.

It is a super-2 number, since 2×7361638131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7361638131.

It is not an unprimeable number, because it can be changed into a prime (7361638121) 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, 3514540 + ... + 3516633.

It is an arithmetic number, because the mean of its divisors is an integer number (1230455450).

Almost surely, 2^7361638131 is an apocalyptic number.

7361638131 is a deficient number, since it is larger than the sum of its proper divisors (2482005469).

7361638131 is a wasteful number, since it uses less digits than its factorization.

7361638131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7031525.

The product of its digits is 54432, while the sum is 39.

The square root of 7361638131 is about 85799.9891083909. The cubic root of 7361638131 is about 1945.3219558542.

Adding to 7361638131 its reverse (1318361637), we get a palindrome (8679999768).

The spelling of 7361638131 in words is "seven billion, three hundred sixty-one million, six hundred thirty-eight thousand, one hundred thirty-one".