2134545478 has 8 divisors (see below), whose sum is σ = 3448111968. Its totient is φ = 985174824.

The previous prime is 2134545433. The next prime is 2134545509. The reversal of 2134545478 is 8745454312.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41048926 + ... + 41048977.

It is an arithmetic number, because the mean of its divisors is an integer number (431013996).

Almost surely, 2^2134545478 is an apocalyptic number.

2134545478 is a deficient number, since it is larger than the sum of its proper divisors (1313566490).

2134545478 is a wasteful number, since it uses less digits than its factorization.

2134545478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82097918.

The product of its digits is 537600, while the sum is 43.

The square root of 2134545478 is about 46201.1415226940. The cubic root of 2134545478 is about 1287.5629484791.

The spelling of 2134545478 in words is "two billion, one hundred thirty-four million, five hundred forty-five thousand, four hundred seventy-eight".