162180987 has 16 divisors (see below), whose sum is σ = 218803200. Its totient is φ = 106847712.

The previous prime is 162180959. The next prime is 162180989. The reversal of 162180987 is 789081261.

It is not a de Polignac number, because 162180987 - 2¹² = 162176891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162180989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98868 + ... + 100494.

It is an arithmetic number, because the mean of its divisors is an integer number (13675200).

Almost surely, 2^162180987 is an apocalyptic number.

162180987 is a deficient number, since it is larger than the sum of its proper divisors (56622213).

162180987 is a wasteful number, since it uses less digits than its factorization.

162180987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 162180987 is about 12735.0299175149. The cubic root of 162180987 is about 545.3391116812.

The spelling of 162180987 in words is "one hundred sixty-two million, one hundred eighty thousand, nine hundred eighty-seven".