2151545122 has 8 divisors (see below), whose sum is σ = 3227617872. Its totient is φ = 1075672500.

The previous prime is 2151545117. The next prime is 2151545129. The reversal of 2151545122 is 2215451512.

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

It is not an unprimeable number, because it can be changed into a prime (2151545129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19404 + ... + 68407.

It is an arithmetic number, because the mean of its divisors is an integer number (403452234).

Almost surely, 2^2151545122 is an apocalyptic number.

2151545122 is a deficient number, since it is larger than the sum of its proper divisors (1076072750).

2151545122 is a wasteful number, since it uses less digits than its factorization.

2151545122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100064.

The product of its digits is 4000, while the sum is 28.

The square root of 2151545122 is about 46384.7509640830. The cubic root of 2151545122 is about 1290.9719898332.

Adding to 2151545122 its reverse (2215451512), we get a palindrome (4366996634).

The spelling of 2151545122 in words is "two billion, one hundred fifty-one million, five hundred forty-five thousand, one hundred twenty-two".