6301981 has 4 divisors (see below), whose sum is σ = 7202272. Its totient is φ = 5401692.

The previous prime is 6301973. The next prime is 6302003. The reversal of 6301981 is 1891036.

It is a happy number.

6301981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6301981 - 2³ = 6301973 is a prime.

It is a super-2 number, since 2×6301981² = 79429929048722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6301481) 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, 450135 + ... + 450148.

It is an arithmetic number, because the mean of its divisors is an integer number (1800568).

Almost surely, 2^6301981 is an apocalyptic number.

It is an amenable number.

6301981 is a deficient number, since it is larger than the sum of its proper divisors (900291).

6301981 is an equidigital number, since it uses as much as digits as its factorization.

6301981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900290.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 6301981 is about 2510.3746732311. The cubic root of 6301981 is about 184.7108314188.

The spelling of 6301981 in words is "six million, three hundred one thousand, nine hundred eighty-one".