199762051 has 2 divisors, whose sum is σ = 199762052. Its totient is φ = 199762050.

The previous prime is 199762049. The next prime is 199762081. The reversal of 199762051 is 150267991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199762051 - 2¹ = 199762049 is a prime.

Together with 199762049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 199761995 and 199762013.

It is not a weakly prime, because it can be changed into another prime (199762081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99881025 + 99881026.

It is an arithmetic number, because the mean of its divisors is an integer number (99881026).

Almost surely, 2^199762051 is an apocalyptic number.

199762051 is a deficient number, since it is larger than the sum of its proper divisors (1).

199762051 is an equidigital number, since it uses as much as digits as its factorization.

199762051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 199762051 is about 14133.7203524054. The cubic root of 199762051 is about 584.5715332400.

The spelling of 199762051 in words is "one hundred ninety-nine million, seven hundred sixty-two thousand, fifty-one".