2091147070 has 8 divisors (see below), whose sum is σ = 3764064744. Its totient is φ = 836458824.

The previous prime is 2091147041. The next prime is 2091147137. The reversal of 2091147070 is 707411902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104557344 + ... + 104557363.

It is an arithmetic number, because the mean of its divisors is an integer number (470508093).

Almost surely, 2^2091147070 is an apocalyptic number.

2091147070 is a deficient number, since it is larger than the sum of its proper divisors (1672917674).

2091147070 is a wasteful number, since it uses less digits than its factorization.

2091147070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209114714.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 2091147070 is about 45729.0615473355. The cubic root of 2091147070 is about 1278.7771259384. Note that the first 3 decimals are identical.

Adding to 2091147070 its reverse (707411902), we get a palindrome (2798558972).

The spelling of 2091147070 in words is "two billion, ninety-one million, one hundred forty-seven thousand, seventy".