7131633601 has 3 divisors (see below), whose sum is σ = 7131718051. Its totient is φ = 7131549152.

The previous prime is 7131633589. The next prime is 7131633611. The reversal of 7131633601 is 1063361317.

The square root of 7131633601 is 84449.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1063361317 = 997 ⋅1066561.

It can be written as a sum of positive squares in only one way, i.e., 538193601 + 6593440000 = 23199^2 + 81200^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7131633601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7131633611) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 42225 + ... + 126673.

Almost surely, 2^7131633601 is an apocalyptic number.

7131633601 is the 84449-th square number.

7131633601 is the 42225-th centered octagonal number.

It is an amenable number.

7131633601 is a deficient number, since it is larger than the sum of its proper divisors (84450).

7131633601 is an frugal number, since it uses more digits than its factorization.

7131633601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168898 (or 84449 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The cubic root of 7131633601 is about 1924.8475598407.

Adding to 7131633601 its reverse (1063361317), we get a palindrome (8194994918).

The spelling of 7131633601 in words is "seven billion, one hundred thirty-one million, six hundred thirty-three thousand, six hundred one".