2145145214 has 32 divisors (see below), whose sum is σ = 3373112160. Its totient is φ = 1022216832.

The previous prime is 2145145199. The next prime is 2145145229. The reversal of 2145145214 is 4125415412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2145145199) and next prime (2145145229).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896732 + ... + 899120.

It is an arithmetic number, because the mean of its divisors is an integer number (105409755).

Almost surely, 2^2145145214 is an apocalyptic number.

2145145214 is a deficient number, since it is larger than the sum of its proper divisors (1227966946).

2145145214 is a wasteful number, since it uses less digits than its factorization.

2145145214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684.

The product of its digits is 6400, while the sum is 29.

The square root of 2145145214 is about 46315.7123879143. The cubic root of 2145145214 is about 1289.6906924228.

The spelling of 2145145214 in words is "two billion, one hundred forty-five million, one hundred forty-five thousand, two hundred fourteen".