2001958145 has 32 divisors (see below), whose sum is σ = 2712683520. Its totient is φ = 1405152000.

The previous prime is 2001958099. The next prime is 2001958163. The reversal of 2001958145 is 5418591002.

It is not a de Polignac number, because 2001958145 - 2⁸ = 2001957889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 716411 + ... + 719199.

It is an arithmetic number, because the mean of its divisors is an integer number (84771360).

Almost surely, 2^2001958145 is an apocalyptic number.

It is an amenable number.

2001958145 is a deficient number, since it is larger than the sum of its proper divisors (710725375).

2001958145 is a wasteful number, since it uses less digits than its factorization.

2001958145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 2001958145 is about 44743.2469206248. The cubic root of 2001958145 is about 1260.3321004587.

The spelling of 2001958145 in words is "two billion, one million, nine hundred fifty-eight thousand, one hundred forty-five".