2245145631 has 4 divisors (see below), whose sum is σ = 2993527512. Its totient is φ = 1496763752.

The previous prime is 2245145629. The next prime is 2245145641. The reversal of 2245145631 is 1365415422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2245145631 - 2¹ = 2245145629 is a prime.

It is a super-3 number, since 3×2245145631³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2245145592 and 2245145601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245145641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374190936 + ... + 374190941.

It is an arithmetic number, because the mean of its divisors is an integer number (748381878).

Almost surely, 2^2245145631 is an apocalyptic number.

2245145631 is a deficient number, since it is larger than the sum of its proper divisors (748381881).

2245145631 is an equidigital number, since it uses as much as digits as its factorization.

2245145631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748381880.

The product of its digits is 28800, while the sum is 33.

The square root of 2245145631 is about 47382.9677310318. The cubic root of 2245145631 is about 1309.4276448064.

The spelling of 2245145631 in words is "two billion, two hundred forty-five million, one hundred forty-five thousand, six hundred thirty-one".