815632151 has 2 divisors, whose sum is σ = 815632152. Its totient is φ = 815632150.

The previous prime is 815632093. The next prime is 815632157. The reversal of 815632151 is 151236518.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 815632151 - 2¹⁸ = 815370007 is a prime.

It is equal to p_41908604 and since 815632151 and 41908604 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (815632157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407816075 + 407816076.

It is an arithmetic number, because the mean of its divisors is an integer number (407816076).

Almost surely, 2^815632151 is an apocalyptic number.

815632151 is a deficient number, since it is larger than the sum of its proper divisors (1).

815632151 is an equidigital number, since it uses as much as digits as its factorization.

815632151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 815632151 is about 28559.2743430221. The cubic root of 815632151 is about 934.3253069637.

Adding to 815632151 its reverse (151236518), we get a palindrome (966868669).

The spelling of 815632151 in words is "eight hundred fifteen million, six hundred thirty-two thousand, one hundred fifty-one".