2263158721 has 4 divisors (see below), whose sum is σ = 2264670000. Its totient is φ = 2261647444.

The previous prime is 2263158691. The next prime is 2263158727. The reversal of 2263158721 is 1278513622.

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 2263158721 - 2¹¹ = 2263156673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2263158727) 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, 753391 + ... + 756388.

It is an arithmetic number, because the mean of its divisors is an integer number (566167500).

Almost surely, 2^2263158721 is an apocalyptic number.

It is an amenable number.

2263158721 is a deficient number, since it is larger than the sum of its proper divisors (1511279).

2263158721 is a wasteful number, since it uses less digits than its factorization.

2263158721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511278.

The product of its digits is 40320, while the sum is 37.

The square root of 2263158721 is about 47572.6677935976. The cubic root of 2263158721 is about 1312.9202226434.

The spelling of 2263158721 in words is "two billion, two hundred sixty-three million, one hundred fifty-eight thousand, seven hundred twenty-one".