162261842 has 4 divisors (see below), whose sum is σ = 243392766. Its totient is φ = 81130920.

The previous prime is 162261829. The next prime is 162261877. The reversal of 162261842 is 248162261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248162261 = 4481 ⋅55381.

It can be written as a sum of positive squares in only one way, i.e., 151757761 + 10504081 = 12319^2 + 3241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162261799 and 162261808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40565459 + ... + 40565462.

Almost surely, 2^162261842 is an apocalyptic number.

162261842 is a deficient number, since it is larger than the sum of its proper divisors (81130924).

162261842 is an equidigital number, since it uses as much as digits as its factorization.

162261842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81130923.

The product of its digits is 9216, while the sum is 32.

The square root of 162261842 is about 12738.2040335363. The cubic root of 162261842 is about 545.4297225252.

The spelling of 162261842 in words is "one hundred sixty-two million, two hundred sixty-one thousand, eight hundred forty-two".