204151630537 has 2 divisors, whose sum is σ = 204151630538. Its totient is φ = 204151630536.

The previous prime is 204151630499. The next prime is 204151630561. The reversal of 204151630537 is 735036151402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204018435856 + 133194681 = 451684^2 + 11541^2 .

It is a cyclic number.

It is not a de Polignac number, because 204151630537 - 2⁷ = 204151630409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204151630496 and 204151630505.

It is not a weakly prime, because it can be changed into another prime (204151630937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102075815268 + 102075815269.

It is an arithmetic number, because the mean of its divisors is an integer number (102075815269).

Almost surely, 2^204151630537 is an apocalyptic number.

It is an amenable number.

204151630537 is a deficient number, since it is larger than the sum of its proper divisors (1).

204151630537 is an equidigital number, since it uses as much as digits as its factorization.

204151630537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

Adding to 204151630537 its reverse (735036151402), we get a palindrome (939187781939).

The spelling of 204151630537 in words is "two hundred four billion, one hundred fifty-one million, six hundred thirty thousand, five hundred thirty-seven".