2145123082 has 8 divisors (see below), whose sum is σ = 3218039136. Its totient is φ = 1072443372.

The previous prime is 2145123077. The next prime is 2145123107. The reversal of 2145123082 is 2803215412.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2145123082.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34318 + ... + 73945.

It is an arithmetic number, because the mean of its divisors is an integer number (402254892).

Almost surely, 2^2145123082 is an apocalyptic number.

2145123082 is a deficient number, since it is larger than the sum of its proper divisors (1072916054).

2145123082 is a wasteful number, since it uses less digits than its factorization.

2145123082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118172.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2145123082 is about 46315.4734619004. The cubic root of 2145123082 is about 1289.6862570536.

Adding to 2145123082 its reverse (2803215412), we get a palindrome (4948338494).

The spelling of 2145123082 in words is "two billion, one hundred forty-five million, one hundred twenty-three thousand, eighty-two".