3161240 has 16 divisors (see below), whose sum is σ = 7112880. Its totient is φ = 1264480.

The previous prime is 3161237. The next prime is 3161273. The reversal of 3161240 is 421613.

3161240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 39476 + ... + 39555.

It is an arithmetic number, because the mean of its divisors is an integer number (444555).

Almost surely, 2^3161240 is an apocalyptic number.

It is an amenable number.

3161240 is an abundant number, since it is smaller than the sum of its proper divisors (3951640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161240 is a wasteful number, since it uses less digits than its factorization.

3161240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79042 (or 79038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3161240 is about 1777.9876265036. The cubic root of 3161240 is about 146.7638703663.

Adding to 3161240 its reverse (421613), we get a palindrome (3582853).

The spelling of 3161240 in words is "three million, one hundred sixty-one thousand, two hundred forty".