2145412111 has 8 divisors (see below), whose sum is σ = 2189408400. Its totient is φ = 2101810752.

The previous prime is 2145412067. The next prime is 2145412117. The reversal of 2145412111 is 1112145412.

It is a happy number.

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 2145412111 - 2¹³ = 2145403919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145412117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87745 + ... + 109498.

It is an arithmetic number, because the mean of its divisors is an integer number (273676050).

Almost surely, 2^2145412111 is an apocalyptic number.

2145412111 is a deficient number, since it is larger than the sum of its proper divisors (43996289).

2145412111 is a wasteful number, since it uses less digits than its factorization.

2145412111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197465.

The product of its digits is 320, while the sum is 22.

The square root of 2145412111 is about 46318.5935775256. The cubic root of 2145412111 is about 1289.7441775823.

Adding to 2145412111 its reverse (1112145412), we get a palindrome (3257557523).

The spelling of 2145412111 in words is "two billion, one hundred forty-five million, four hundred twelve thousand, one hundred eleven".