162890074 has 4 divisors (see below), whose sum is σ = 244335114. Its totient is φ = 81445036.

The previous prime is 162890051. The next prime is 162890081. The reversal of 162890074 is 470098261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 470098261 = 4327 ⋅108643.

It can be written as a sum of positive squares in only one way, i.e., 105206049 + 57684025 = 10257^2 + 7595^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40722517 + ... + 40722520.

Almost surely, 2^162890074 is an apocalyptic number.

162890074 is a deficient number, since it is larger than the sum of its proper divisors (81445040).

162890074 is an equidigital number, since it uses as much as digits as its factorization.

162890074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81445039.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 162890074 is about 12762.8395743267. The cubic root of 162890074 is about 546.1327326046.

The spelling of 162890074 in words is "one hundred sixty-two million, eight hundred ninety thousand, seventy-four".