2145501201 has 8 divisors (see below), whose sum is σ = 3028942944. Its totient is φ = 1346196800.

The previous prime is 2145501181. The next prime is 2145501233. The reversal of 2145501201 is 1021055412.

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 2145501201 - 2¹⁰ = 2145500177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145501301) 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, 21034275 + ... + 21034376.

It is an arithmetic number, because the mean of its divisors is an integer number (378617868).

Almost surely, 2^2145501201 is an apocalyptic number.

It is an amenable number.

2145501201 is a deficient number, since it is larger than the sum of its proper divisors (883441743).

2145501201 is a wasteful number, since it uses less digits than its factorization.

2145501201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42068671.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2145501201 is about 46319.5552763625. Note that the first 3 decimals coincide. The cubic root of 2145501201 is about 1289.7620298973.

Adding to 2145501201 its reverse (1021055412), we get a palindrome (3166556613).

The spelling of 2145501201 in words is "two billion, one hundred forty-five million, five hundred one thousand, two hundred one".