162531151 has 2 divisors, whose sum is σ = 162531152. Its totient is φ = 162531150.

The previous prime is 162531139. The next prime is 162531157. The reversal of 162531151 is 151135261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162531151 - 2²³ = 154142543 is a prime.

It is a super-3 number, since 3×162531151³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162531157) 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, 81265575 + 81265576.

It is an arithmetic number, because the mean of its divisors is an integer number (81265576).

Almost surely, 2^162531151 is an apocalyptic number.

162531151 is a deficient number, since it is larger than the sum of its proper divisors (1).

162531151 is an equidigital number, since it uses as much as digits as its factorization.

162531151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 25.

The square root of 162531151 is about 12748.7705681764. The cubic root of 162531151 is about 545.7313090254.

The spelling of 162531151 in words is "one hundred sixty-two million, five hundred thirty-one thousand, one hundred fifty-one".