162997210 has 32 divisors (see below), whose sum is σ = 302237712. Its totient is φ = 63244800.

The previous prime is 162997199. The next prime is 162997223. The reversal of 162997210 is 12799261.

It can be written as a sum of positive squares in 8 ways, for example, as 160554241 + 2442969 = 12671^2 + 1563^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 162997210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222004 + ... + 222736.

Almost surely, 2^162997210 is an apocalyptic number.

162997210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162997210 is a deficient number, since it is larger than the sum of its proper divisors (139240502).

162997210 is a wasteful number, since it uses less digits than its factorization.

162997210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 162997210 is about 12767.0360695034. The cubic root of 162997210 is about 546.2524404375.

The spelling of 162997210 in words is "one hundred sixty-two million, nine hundred ninety-seven thousand, two hundred ten".