5149881 has 18 divisors (see below), whose sum is σ = 8178170. Its totient is φ = 3120480.

The previous prime is 5149867. The next prime is 5149891. The reversal of 5149881 is 1889415.

5149881 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 2205225 = 1716^2 + 1485^2 .

It is not a de Polignac number, because 5149881 - 2¹⁵ = 5117113 is a prime.

It is a super-2 number, since 2×5149881² = 53042548628322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5149801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1276 + ... + 3453.

Almost surely, 2^5149881 is an apocalyptic number.

It is an amenable number.

5149881 is a deficient number, since it is larger than the sum of its proper divisors (3028289).

5149881 is a wasteful number, since it uses less digits than its factorization.

5149881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4743 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 5149881 is about 2269.3349245980. The cubic root of 5149881 is about 172.6894201533.

The spelling of 5149881 in words is "five million, one hundred forty-nine thousand, eight hundred eighty-one".