2152251242 has 16 divisors (see below), whose sum is σ = 3299916672. Its totient is φ = 1052410320.

The previous prime is 2152251193. The next prime is 2152251287. The reversal of 2152251242 is 2421522512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 65609.

It is an arithmetic number, because the mean of its divisors is an integer number (206244792).

Almost surely, 2^2152251242 is an apocalyptic number.

2152251242 is a deficient number, since it is larger than the sum of its proper divisors (1147665430).

2152251242 is a wasteful number, since it uses less digits than its factorization.

2152251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65653.

The product of its digits is 3200, while the sum is 26.

The square root of 2152251242 is about 46392.3618928806. The cubic root of 2152251242 is about 1291.1132032997.

Adding to 2152251242 its reverse (2421522512), we get a palindrome (4573773754).

The spelling of 2152251242 in words is "two billion, one hundred fifty-two million, two hundred fifty-one thousand, two hundred forty-two".