2145545122 has 32 divisors (see below), whose sum is σ = 3783866112. Its totient is φ = 893156544.

The previous prime is 2145545111. The next prime is 2145545167. The reversal of 2145545122 is 2215455412.

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 15 ways as a sum of consecutive naturals, for example, 335083 + ... + 341425.

It is an arithmetic number, because the mean of its divisors is an integer number (118245816).

Almost surely, 2^2145545122 is an apocalyptic number.

2145545122 is a deficient number, since it is larger than the sum of its proper divisors (1638320990).

2145545122 is a wasteful number, since it uses less digits than its factorization.

2145545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042.

The product of its digits is 16000, while the sum is 31.

The square root of 2145545122 is about 46320.0293825468. The cubic root of 2145545122 is about 1289.7708308326.

The spelling of 2145545122 in words is "two billion, one hundred forty-five million, five hundred forty-five thousand, one hundred twenty-two".