162256538 has 4 divisors (see below), whose sum is σ = 243384810. Its totient is φ = 81128268.

The previous prime is 162256529. The next prime is 162256543. The reversal of 162256538 is 835652261.

162256538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835652261 = 23 ⋅36332707.

It can be written as a sum of positive squares in only one way, i.e., 160452889 + 1803649 = 12667^2 + 1343^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40564133 + ... + 40564136.

Almost surely, 2^162256538 is an apocalyptic number.

162256538 is a deficient number, since it is larger than the sum of its proper divisors (81128272).

162256538 is an equidigital number, since it uses as much as digits as its factorization.

162256538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81128271.

The product of its digits is 86400, while the sum is 38.

The square root of 162256538 is about 12737.9958392205. The cubic root of 162256538 is about 545.4237794751.

The spelling of 162256538 in words is "one hundred sixty-two million, two hundred fifty-six thousand, five hundred thirty-eight".