194503051 has 2 divisors, whose sum is σ = 194503052. Its totient is φ = 194503050.

The previous prime is 194503039. The next prime is 194503079. The reversal of 194503051 is 150305491.

It is an a-pointer prime, because the next prime (194503079) can be obtained adding 194503051 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194503051 - 2⁷ = 194502923 is a prime.

It is not a weakly prime, because it can be changed into another prime (194503031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97251525 + 97251526.

It is an arithmetic number, because the mean of its divisors is an integer number (97251526).

Almost surely, 2^194503051 is an apocalyptic number.

194503051 is the 8821-st centered pentagonal number.

194503051 is a deficient number, since it is larger than the sum of its proper divisors (1).

194503051 is an equidigital number, since it uses as much as digits as its factorization.

194503051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 194503051 is about 13946.4350642019. The cubic root of 194503051 is about 579.3959734291.

The spelling of 194503051 in words is "one hundred ninety-four million, five hundred three thousand, fifty-one".