3148981 has 8 divisors (see below), whose sum is σ = 3448224. Its totient is φ = 2851920.

The previous prime is 3148973. The next prime is 3148987. The reversal of 3148981 is 1898413.

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 not a de Polignac number, because 3148981 - 2³ = 3148973 is a prime.

It is a super-2 number, since 2×3148981² = 19832162676722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3148987) 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, 4831 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (431028).

Almost surely, 2^3148981 is an apocalyptic number.

It is an amenable number.

3148981 is a deficient number, since it is larger than the sum of its proper divisors (299243).

3148981 is a wasteful number, since it uses less digits than its factorization.

3148981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its digits is 6912, while the sum is 34.

The square root of 3148981 is about 1774.5368409813. The cubic root of 3148981 is about 146.5739123126.

The spelling of 3148981 in words is "three million, one hundred forty-eight thousand, nine hundred eighty-one".