2145023416 has 32 divisors (see below), whose sum is σ = 4263911280. Its totient is φ = 1008140800.

The previous prime is 2145023341. The next prime is 2145023417. The reversal of 2145023416 is 6143205412.

It is a super-2 number, since 2×2145023416² = 9202250910376618112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145023417) 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, 102051 + ... + 121261.

Almost surely, 2^2145023416 is an apocalyptic number.

It is an amenable number.

2145023416 is a deficient number, since it is larger than the sum of its proper divisors (2118887864).

2145023416 is a wasteful number, since it uses less digits than its factorization.

2145023416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055 (or 20051 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2145023416 is about 46314.3975022886. The cubic root of 2145023416 is about 1289.6662830853. Note that the first 3 decimals are identical.

Adding to 2145023416 its reverse (6143205412), we get a palindrome (8288228828).

The spelling of 2145023416 in words is "two billion, one hundred forty-five million, twenty-three thousand, four hundred sixteen".