2267145897 has 4 divisors (see below), whose sum is σ = 3022861200. Its totient is φ = 1511430596.

The previous prime is 2267145887. The next prime is 2267145899. The reversal of 2267145897 is 7985417622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2267145897 - 2⁶ = 2267145833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2267145899) 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, 377857647 + ... + 377857652.

It is an arithmetic number, because the mean of its divisors is an integer number (755715300).

Almost surely, 2^2267145897 is an apocalyptic number.

It is an amenable number.

2267145897 is a deficient number, since it is larger than the sum of its proper divisors (755715303).

2267145897 is an equidigital number, since it uses as much as digits as its factorization.

2267145897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755715302.

The product of its digits is 1693440, while the sum is 51.

The square root of 2267145897 is about 47614.5555161444. Note that the first 4 decimals coincide. The cubic root of 2267145897 is about 1313.6907935499.

The spelling of 2267145897 in words is "two billion, two hundred sixty-seven million, one hundred forty-five thousand, eight hundred ninety-seven".