3161842 has 4 divisors (see below), whose sum is σ = 4742766. Its totient is φ = 1580920.

The previous prime is 3161819. The next prime is 3161857. The reversal of 3161842 is 2481613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2481613 = 67 ⋅37039.

It can be written as a sum of positive squares in only one way, i.e., 2163841 + 998001 = 1471^2 + 999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790459 + ... + 790462.

Almost surely, 2^3161842 is an apocalyptic number.

3161842 is a deficient number, since it is larger than the sum of its proper divisors (1580924).

3161842 is a wasteful number, since it uses less digits than its factorization.

3161842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580923.

The product of its digits is 1152, while the sum is 25.

The square root of 3161842 is about 1778.1569109615. The cubic root of 3161842 is about 146.7731859347.

The spelling of 3161842 in words is "three million, one hundred sixty-one thousand, eight hundred forty-two".