199364537 has 2 divisors, whose sum is σ = 199364538. Its totient is φ = 199364536.

The previous prime is 199364527. The next prime is 199364551. The reversal of 199364537 is 735463991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130325056 + 69039481 = 11416^2 + 8309^2 .

It is a cyclic number.

It is not a de Polignac number, because 199364537 - 2⁸ = 199364281 is a prime.

It is a super-2 number, since 2×199364537² = 79492437226448738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199364491 and 199364500.

It is not a weakly prime, because it can be changed into another prime (199364527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99682268 + 99682269.

It is an arithmetic number, because the mean of its divisors is an integer number (99682269).

Almost surely, 2^199364537 is an apocalyptic number.

It is an amenable number.

199364537 is a deficient number, since it is larger than the sum of its proper divisors (1).

199364537 is an equidigital number, since it uses as much as digits as its factorization.

199364537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 199364537 is about 14119.6507393065. The cubic root of 199364537 is about 584.1835221447.

The spelling of 199364537 in words is "one hundred ninety-nine million, three hundred sixty-four thousand, five hundred thirty-seven".