162105490 has 16 divisors (see below), whose sum is σ = 295070040. Its totient is φ = 64113280.

The previous prime is 162105469. The next prime is 162105497. The reversal of 162105490 is 94501261.

It can be written as a sum of positive squares in 4 ways, for example, as 137334961 + 24770529 = 11719^2 + 4977^2 .

It is not an unprimeable number, because it can be changed into a prime (162105497) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 90181 + ... + 91960.

Almost surely, 2^162105490 is an apocalyptic number.

162105490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162105490 is a deficient number, since it is larger than the sum of its proper divisors (132964550).

162105490 is a wasteful number, since it uses less digits than its factorization.

162105490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182237.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 162105490 is about 12732.0654255309. The cubic root of 162105490 is about 545.2544781330.

The spelling of 162105490 in words is "one hundred sixty-two million, one hundred five thousand, four hundred ninety".