2601381 has 8 divisors (see below), whose sum is σ = 3507840. Its totient is φ = 1714592.

The previous prime is 2601377. The next prime is 2601383. The reversal of 2601381 is 1831062.

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 2601381 - 2² = 2601377 is a prime.

It is a super-2 number, since 2×2601381² = 13534366214322, which contains 22 as substring.

2601381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601383) 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, 4605 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (438480).

2^2601381 is an apocalyptic number.

It is an amenable number.

2601381 is a deficient number, since it is larger than the sum of its proper divisors (906459).

2601381 is an equidigital number, since it uses as much as digits as its factorization.

2601381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2601381 is about 1612.8797227320. The cubic root of 2601381 is about 137.5312281688.

The spelling of 2601381 in words is "two million, six hundred one thousand, three hundred eighty-one".