162171487 has 8 divisors (see below), whose sum is σ = 164227616. Its totient is φ = 160123392.

The previous prime is 162171473. The next prime is 162171497. The reversal of 162171487 is 784171261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162171487 - 2¹⁵ = 162138719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162171497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45523 + ... + 48955.

It is an arithmetic number, because the mean of its divisors is an integer number (20528452).

Almost surely, 2^162171487 is an apocalyptic number.

162171487 is a deficient number, since it is larger than the sum of its proper divisors (2056129).

162171487 is an equidigital number, since it uses as much as digits as its factorization.

162171487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017.

The product of its digits is 18816, while the sum is 37.

The square root of 162171487 is about 12734.6569251001. The cubic root of 162171487 is about 545.3284634484.

The spelling of 162171487 in words is "one hundred sixty-two million, one hundred seventy-one thousand, four hundred eighty-seven".