2145250011 has 8 divisors (see below), whose sum is σ = 2930097744. Its totient is φ = 1395284480.

The previous prime is 2145249991. The next prime is 2145250021. The reversal of 2145250011 is 1100525412.

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

It is a cyclic number.

It is not a de Polignac number, because 2145250011 - 2⁵ = 2145249979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2145250011.

It is not an unprimeable number, because it can be changed into a prime (2145250021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8720406 + ... + 8720651.

It is an arithmetic number, because the mean of its divisors is an integer number (366262218).

Almost surely, 2^2145250011 is an apocalyptic number.

2145250011 is a deficient number, since it is larger than the sum of its proper divisors (784847733).

2145250011 is a wasteful number, since it uses less digits than its factorization.

2145250011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17441101.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2145250011 is about 46316.8437072303. The cubic root of 2145250011 is about 1289.7116938782.

Adding to 2145250011 its reverse (1100525412), we get a palindrome (3245775423).

The spelling of 2145250011 in words is "two billion, one hundred forty-five million, two hundred fifty thousand, eleven".