162912819 has 16 divisors (see below), whose sum is σ = 230256000. Its totient is φ = 102103680.

The previous prime is 162912797. The next prime is 162912823. The reversal of 162912819 is 918219261.

It is not a de Polignac number, because 162912819 - 2⁹ = 162912307 is a prime.

It is a super-2 number, since 2×162912819² = 53081173189053522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162912119) 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, 75384 + ... + 77514.

It is an arithmetic number, because the mean of its divisors is an integer number (14391000).

Almost surely, 2^162912819 is an apocalyptic number.

162912819 is a deficient number, since it is larger than the sum of its proper divisors (67343181).

162912819 is a wasteful number, since it uses less digits than its factorization.

162912819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650.

The product of its digits is 15552, while the sum is 39.

The square root of 162912819 is about 12763.7306066839. The cubic root of 162912819 is about 546.1581509958.

It can be divided in two parts, 16291 and 2819, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 162912819 in words is "one hundred sixty-two million, nine hundred twelve thousand, eight hundred nineteen".