920819051 has 2 divisors, whose sum is σ = 920819052. Its totient is φ = 920819050.

The previous prime is 920819017. The next prime is 920819057. The reversal of 920819051 is 150918029.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 920819051 - 2¹⁰ = 920818027 is a prime.

It is not a weakly prime, because it can be changed into another prime (920819057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460409525 + 460409526.

It is an arithmetic number, because the mean of its divisors is an integer number (460409526).

Almost surely, 2^920819051 is an apocalyptic number.

920819051 is a deficient number, since it is larger than the sum of its proper divisors (1).

920819051 is an equidigital number, since it uses as much as digits as its factorization.

920819051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 920819051 is about 30345.0004284067. Note that the first 3 decimals coincide. The cubic root of 920819051 is about 972.8773637444.

The spelling of 920819051 in words is "nine hundred twenty million, eight hundred nineteen thousand, fifty-one".