6101981 has 4 divisors (see below), whose sum is σ = 6115200. Its totient is φ = 6088764.

The previous prime is 6101959. The next prime is 6101993. The reversal of 6101981 is 1891016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6101981 - 2⁶ = 6101917 is a prime.

It is a super-2 number, since 2×6101981² = 74468344248722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6101981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5891 + ... + 6848.

It is an arithmetic number, because the mean of its divisors is an integer number (1528800).

Almost surely, 2^6101981 is an apocalyptic number.

It is an amenable number.

6101981 is a deficient number, since it is larger than the sum of its proper divisors (13219).

6101981 is a wasteful number, since it uses less digits than its factorization.

6101981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13218.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 6101981 is about 2470.2188162185. The cubic root of 6101981 is about 182.7357908037.

Adding to 6101981 its reverse (1891016), we get a palindrome (7992997).

The spelling of 6101981 in words is "six million, one hundred one thousand, nine hundred eighty-one".