2122945465 has 8 divisors (see below), whose sum is σ = 2697389640. Its totient is φ = 1598452992.

The previous prime is 2122945457. The next prime is 2122945469. The reversal of 2122945465 is 5645492212.

It can be written as a sum of positive squares in 4 ways, for example, as 674077369 + 1448868096 = 25963^2 + 38064^2 .

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 2122945465 - 2³ = 2122945457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122945469) 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, 12487830 + ... + 12487999.

It is an arithmetic number, because the mean of its divisors is an integer number (337173705).

Almost surely, 2^2122945465 is an apocalyptic number.

It is an amenable number.

2122945465 is a deficient number, since it is larger than the sum of its proper divisors (574444175).

2122945465 is a wasteful number, since it uses less digits than its factorization.

2122945465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24975851.

The product of its digits is 172800, while the sum is 40.

The square root of 2122945465 is about 46075.4323365500. The cubic root of 2122945465 is about 1285.2263254095.

The spelling of 2122945465 in words is "two billion, one hundred twenty-two million, nine hundred forty-five thousand, four hundred sixty-five".