815150953 has 2 divisors, whose sum is σ = 815150954. Its totient is φ = 815150952.

The previous prime is 815150909. The next prime is 815150989. The reversal of 815150953 is 359051518.

815150953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723986649 + 91164304 = 26907^2 + 9548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-815150953 is a prime.

It is equal to p_41885029 and since 815150953 and 41885029 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (815150753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407575476 + 407575477.

It is an arithmetic number, because the mean of its divisors is an integer number (407575477).

Almost surely, 2^815150953 is an apocalyptic number.

It is an amenable number.

815150953 is a deficient number, since it is larger than the sum of its proper divisors (1).

815150953 is an equidigital number, since it uses as much as digits as its factorization.

815150953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 37.

The square root of 815150953 is about 28550.8485513128. The cubic root of 815150953 is about 934.1415297085.

The spelling of 815150953 in words is "eight hundred fifteen million, one hundred fifty thousand, nine hundred fifty-three".