2015920073 has 2 divisors, whose sum is σ = 2015920074. Its totient is φ = 2015920072.

The previous prime is 2015920063. The next prime is 2015920091. The reversal of 2015920073 is 3700295102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1499857984 + 516062089 = 38728^2 + 22717^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015920073 - 2¹² = 2015915977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2015920013) 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, 1007960036 + 1007960037.

It is an arithmetic number, because the mean of its divisors is an integer number (1007960037).

Almost surely, 2^2015920073 is an apocalyptic number.

It is an amenable number.

2015920073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015920073 is an equidigital number, since it uses as much as digits as its factorization.

2015920073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 2015920073 is about 44898.9985745785. The cubic root of 2015920073 is about 1263.2552246124.

The spelling of 2015920073 in words is "two billion, fifteen million, nine hundred twenty thousand, seventy-three".