6120001581 has 8 divisors (see below), whose sum is σ = 8640002304. Its totient is φ = 3840000960.

The previous prime is 6120001577. The next prime is 6120001627. The reversal of 6120001581 is 1851000216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6120001581 - 2² = 6120001577 is a prime.

It is a super-2 number, since 2×6120001581² = 74908838702884999122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6120001781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59999965 + ... + 60000066.

It is an arithmetic number, because the mean of its divisors is an integer number (1080000288).

Almost surely, 2^6120001581 is an apocalyptic number.

It is an amenable number.

6120001581 is a deficient number, since it is larger than the sum of its proper divisors (2520000723).

6120001581 is a wasteful number, since it uses less digits than its factorization.

6120001581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120000051.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 6120001581 is about 78230.4389671949. The cubic root of 6120001581 is about 1829.1550122647.

Adding to 6120001581 its reverse (1851000216), we get a palindrome (7971001797).

The spelling of 6120001581 in words is "six billion, one hundred twenty million, one thousand, five hundred eighty-one".