162536121 has 24 divisors (see below), whose sum is σ = 257085504. Its totient is φ = 98134560.

The previous prime is 162536071. The next prime is 162536137. The reversal of 162536121 is 121635261.

162536121 is a `hidden beast` number, since 1 + 6 + 2 + 536 + 121 = 666.

It is not a de Polignac number, because 162536121 - 2⁶ = 162536057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162536141) 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 in 23 ways as a sum of consecutive naturals, for example, 24460 + ... + 30386.

It is an arithmetic number, because the mean of its divisors is an integer number (10711896).

Almost surely, 2^162536121 is an apocalyptic number.

162536121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162536121 is a deficient number, since it is larger than the sum of its proper divisors (94549383).

162536121 is a wasteful number, since it uses less digits than its factorization.

162536121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221 (or 6218 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 162536121 is about 12748.9654874425. The cubic root of 162536121 is about 545.7368715631.

The spelling of 162536121 in words is "one hundred sixty-two million, five hundred thirty-six thousand, one hundred twenty-one".