2145252011 has 8 divisors (see below), whose sum is σ = 2455814400. Its totient is φ = 1835714088.

The previous prime is 2145251963. The next prime is 2145252013. The reversal of 2145252011 is 1102525412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145252011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145252013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251621 + ... + 260006.

It is an arithmetic number, because the mean of its divisors is an integer number (306976800).

Almost surely, 2^2145252011 is an apocalyptic number.

2145252011 is a deficient number, since it is larger than the sum of its proper divisors (310562389).

2145252011 is an equidigital number, since it uses as much as digits as its factorization.

2145252011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512233.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2145252011 is about 46316.8652976429. The cubic root of 2145252011 is about 1289.7120946741.

Adding to 2145252011 its reverse (1102525412), we get a palindrome (3247777423).

The spelling of 2145252011 in words is "two billion, one hundred forty-five million, two hundred fifty-two thousand, eleven".