2228142591 has 12 divisors (see below), whose sum is σ = 3222168768. Its totient is φ = 1483701984.

The previous prime is 2228142571. The next prime is 2228142599. The reversal of 2228142591 is 1952418222.

2228142591 is a `hidden beast` number, since 2 + 2 + 28 + 1 + 42 + 591 = 666.

It is not a de Polignac number, because 2228142591 - 2⁷ = 2228142463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228142599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135670 + ... + 151203.

It is an arithmetic number, because the mean of its divisors is an integer number (268514064).

Almost surely, 2^2228142591 is an apocalyptic number.

2228142591 is a deficient number, since it is larger than the sum of its proper divisors (994026177).

2228142591 is a wasteful number, since it uses less digits than its factorization.

2228142591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287742 (or 287739 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 2228142591 is about 47203.2053043011. The cubic root of 2228142591 is about 1306.1137257744.

The spelling of 2228142591 in words is "two billion, two hundred twenty-eight million, one hundred forty-two thousand, five hundred ninety-one".