2150515901 has 2 divisors, whose sum is σ = 2150515902. Its totient is φ = 2150515900.

The previous prime is 2150515897. The next prime is 2150515903. The reversal of 2150515901 is 1095150512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2129822500 + 20693401 = 46150^2 + 4549^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150515901 - 2² = 2150515897 is a prime.

Together with 2150515903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2150515903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075257950 + 1075257951.

It is an arithmetic number, because the mean of its divisors is an integer number (1075257951).

Almost surely, 2^2150515901 is an apocalyptic number.

It is an amenable number.

2150515901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150515901 is an equidigital number, since it uses as much as digits as its factorization.

2150515901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 29.

The square root of 2150515901 is about 46373.6552473492. The cubic root of 2150515901 is about 1290.7661056383.

The spelling of 2150515901 in words is "two billion, one hundred fifty million, five hundred fifteen thousand, nine hundred one".