2001145677 has 8 divisors (see below), whose sum is σ = 2671325664. Its totient is φ = 1332531408.

The previous prime is 2001145673. The next prime is 2001145691. The reversal of 2001145677 is 7765411002.

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

It is not a de Polignac number, because 2001145677 - 2² = 2001145673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001145673) 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, 388443 + ... + 393560.

It is an arithmetic number, because the mean of its divisors is an integer number (333915708).

Almost surely, 2^2001145677 is an apocalyptic number.

It is an amenable number.

2001145677 is a deficient number, since it is larger than the sum of its proper divisors (670179987).

2001145677 is an equidigital number, since it uses as much as digits as its factorization.

2001145677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782859.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 2001145677 is about 44734.1667744019. The cubic root of 2001145677 is about 1260.1615810670.

Adding to 2001145677 its reverse (7765411002), we get a palindrome (9766556679).

The spelling of 2001145677 in words is "two billion, one million, one hundred forty-five thousand, six hundred seventy-seven".