2145027338 has 4 divisors (see below), whose sum is σ = 3217541010. Its totient is φ = 1072513668.

The previous prime is 2145027323. The next prime is 2145027371. The reversal of 2145027338 is 8337205412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1475097649 + 669929689 = 38407^2 + 25883^2 .

It is a super-2 number, since 2×2145027338² = 9202284561534732488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2145027298 and 2145027307.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 536256833 + ... + 536256836.

Almost surely, 2^2145027338 is an apocalyptic number.

2145027338 is a deficient number, since it is larger than the sum of its proper divisors (1072513672).

2145027338 is a wasteful number, since it uses less digits than its factorization.

2145027338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072513671.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2145027338 is about 46314.4398433145. The cubic root of 2145027338 is about 1289.6670691013.

The spelling of 2145027338 in words is "two billion, one hundred forty-five million, twenty-seven thousand, three hundred thirty-eight".