162673261 has 4 divisors (see below), whose sum is σ = 162700092. Its totient is φ = 162646432.

The previous prime is 162673249. The next prime is 162673321. The reversal of 162673261 is 162376261.

It is a happy number.

162673261 is digitally balanced in base 2, 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: 162376261 = 19 ⋅8546119.

It can be written as a sum of positive squares in 2 ways, for example, as 54908100 + 107765161 = 7410^2 + 10381^2 .

It is a cyclic number.

It is not a de Polignac number, because 162673261 - 2¹⁷ = 162542189 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 (162673241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471 + ... + 18043.

It is an arithmetic number, because the mean of its divisors is an integer number (40675023).

Almost surely, 2^162673261 is an apocalyptic number.

It is an amenable number.

162673261 is a deficient number, since it is larger than the sum of its proper divisors (26831).

162673261 is an equidigital number, since it uses as much as digits as its factorization.

162673261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26830.

The product of its digits is 18144, while the sum is 34.

The square root of 162673261 is about 12754.3428290132. The cubic root of 162673261 is about 545.8903170753.

The spelling of 162673261 in words is "one hundred sixty-two million, six hundred seventy-three thousand, two hundred sixty-one".