3149861 has 8 divisors (see below), whose sum is σ = 3700704. Its totient is φ = 2643120.

The previous prime is 3149851. The next prime is 3149897. The reversal of 3149861 is 1689413.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3149861 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 (3149821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10871 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (462588).

Almost surely, 2^3149861 is an apocalyptic number.

It is an amenable number.

3149861 is a deficient number, since it is larger than the sum of its proper divisors (550843).

3149861 is a wasteful number, since it uses less digits than its factorization.

3149861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22051.

The product of its digits is 5184, while the sum is 32.

The square root of 3149861 is about 1774.7847756841. The cubic root of 3149861 is about 146.5875646687.

The spelling of 3149861 in words is "three million, one hundred forty-nine thousand, eight hundred sixty-one".