8161442 has 8 divisors (see below), whose sum is σ = 12257436. Its totient is φ = 4075632.

The previous prime is 8161429. The next prime is 8161451. The reversal of 8161442 is 2441618.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 203401 = 2821^2 + 451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 4040.

Almost surely, 2^8161442 is an apocalyptic number.

8161442 is a deficient number, since it is larger than the sum of its proper divisors (4095994).

8161442 is a wasteful number, since it uses less digits than its factorization.

8161442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092.

The product of its digits is 1536, while the sum is 26.

The square root of 8161442 is about 2856.8237607525. The cubic root of 8161442 is about 201.3364002817.

The spelling of 8161442 in words is "eight million, one hundred sixty-one thousand, four hundred forty-two".