2001424155 has 8 divisors (see below), whose sum is σ = 3202278672. Its totient is φ = 1067426208.

The previous prime is 2001424141. The next prime is 2001424211. The reversal of 2001424155 is 5514241002.

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

It is not a de Polignac number, because 2001424155 - 2⁵ = 2001424123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66714124 + ... + 66714153.

It is an arithmetic number, because the mean of its divisors is an integer number (400284834).

Almost surely, 2^2001424155 is an apocalyptic number.

2001424155 is a deficient number, since it is larger than the sum of its proper divisors (1200854517).

2001424155 is a wasteful number, since it uses less digits than its factorization.

2001424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133428285.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2001424155 is about 44737.2792534369. The cubic root of 2001424155 is about 1260.2200327502.

Adding to 2001424155 its reverse (5514241002), we get a palindrome (7515665157).

The spelling of 2001424155 in words is "two billion, one million, four hundred twenty-four thousand, one hundred fifty-five".