2145491126 has 8 divisors (see below), whose sum is σ = 3218541480. Its totient is φ = 1072643968.

The previous prime is 2145491119. The next prime is 2145491141. The reversal of 2145491126 is 6211945412.

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, 20876 + ... + 68751.

It is an arithmetic number, because the mean of its divisors is an integer number (402317685).

Almost surely, 2^2145491126 is an apocalyptic number.

2145491126 is a deficient number, since it is larger than the sum of its proper divisors (1073050354).

2145491126 is a wasteful number, since it uses less digits than its factorization.

2145491126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101598.

The product of its digits is 17280, while the sum is 35.

The square root of 2145491126 is about 46319.4465208729. The cubic root of 2145491126 is about 1289.7600110415.

The spelling of 2145491126 in words is "two billion, one hundred forty-five million, four hundred ninety-one thousand, one hundred twenty-six".