162540105 has 48 divisors (see below), whose sum is σ = 325813824. Its totient is φ = 68584320.

The previous prime is 162540097. The next prime is 162540127. The reversal of 162540105 is 501045261.

It is not a de Polignac number, because 162540105 - 2³ = 162540097 is a prime.

It is a super-2 number, since 2×162540105² = 52838571466822050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1050 + ... + 18060.

It is an arithmetic number, because the mean of its divisors is an integer number (6787788).

Almost surely, 2^162540105 is an apocalyptic number.

162540105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162540105 is an abundant number, since it is smaller than the sum of its proper divisors (163273719).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162540105 is a wasteful number, since it uses less digits than its factorization.

162540105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17046 (or 17039 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 162540105 is about 12749.1217344568. The cubic root of 162540105 is about 545.7413304651.

Adding to 162540105 its reverse (501045261), we get a palindrome (663585366).

The spelling of 162540105 in words is "one hundred sixty-two million, five hundred forty thousand, one hundred five".