2191148588 has 6 divisors (see below), whose sum is σ = 3834510036. Its totient is φ = 1095574292.

The previous prime is 2191148587. The next prime is 2191148651. The reversal of 2191148588 is 8858411912.

It is a super-2 number, since 2×2191148588² = 9602264269388787488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2191148587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273893570 + ... + 273893577.

It is an arithmetic number, because the mean of its divisors is an integer number (639085006).

Almost surely, 2^2191148588 is an apocalyptic number.

It is an amenable number.

2191148588 is a deficient number, since it is larger than the sum of its proper divisors (1643361448).

2191148588 is a wasteful number, since it uses less digits than its factorization.

2191148588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547787151 (or 547787149 counting only the distinct ones).

The product of its digits is 184320, while the sum is 47.

The square root of 2191148588 is about 46809.7061302461. The cubic root of 2191148588 is about 1298.8448492082.

The spelling of 2191148588 in words is "two billion, one hundred ninety-one million, one hundred forty-eight thousand, five hundred eighty-eight".