2145051334 has 4 divisors (see below), whose sum is σ = 3217577004. Its totient is φ = 1072525666.

The previous prime is 2145051331. The next prime is 2145051353. The reversal of 2145051334 is 4331505412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145051331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536262832 + ... + 536262835.

It is an arithmetic number, because the mean of its divisors is an integer number (804394251).

Almost surely, 2^2145051334 is an apocalyptic number.

2145051334 is a deficient number, since it is larger than the sum of its proper divisors (1072525670).

2145051334 is a wasteful number, since it uses less digits than its factorization.

2145051334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072525669.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2145051334 is about 46314.6988978661. The cubic root of 2145051334 is about 1289.6718781676.

Adding to 2145051334 its reverse (4331505412), we get a palindrome (6476556746).

The spelling of 2145051334 in words is "two billion, one hundred forty-five million, fifty-one thousand, three hundred thirty-four".