2145022361 has 8 divisors (see below), whose sum is σ = 2181253248. Its totient is φ = 2108826000.

The previous prime is 2145022333. The next prime is 2145022403. The reversal of 2145022361 is 1632205412.

It is a happy number.

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 2145022361 - 2¹⁴ = 2145005977 is a prime.

It is a super-3 number, since 3×2145022361³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145022361.

It is not an unprimeable number, because it can be changed into a prime (2145025361) 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, 137216 + ... + 152046.

It is an arithmetic number, because the mean of its divisors is an integer number (272656656).

Almost surely, 2^2145022361 is an apocalyptic number.

It is an amenable number.

2145022361 is a deficient number, since it is larger than the sum of its proper divisors (36230887).

2145022361 is a wasteful number, since it uses less digits than its factorization.

2145022361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17263.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2145022361 is about 46314.3861127404. The cubic root of 2145022361 is about 1289.6660716505. Note that the first 3 decimals are identical.

Adding to 2145022361 its reverse (1632205412), we get a palindrome (3777227773).

The spelling of 2145022361 in words is "two billion, one hundred forty-five million, twenty-two thousand, three hundred sixty-one".