2145024505 has 32 divisors (see below), whose sum is σ = 2900136960. Its totient is φ = 1511178240.

The previous prime is 2145024503. The next prime is 2145024517. The reversal of 2145024505 is 5054205412.

It is not a de Polignac number, because 2145024505 - 2¹ = 2145024503 is a prime.

It is a super-2 number, since 2×2145024505² = 9202260254100990050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145024503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642681 + ... + 646009.

It is an arithmetic number, because the mean of its divisors is an integer number (90629280).

Almost surely, 2^2145024505 is an apocalyptic number.

It is an amenable number.

2145024505 is a deficient number, since it is larger than the sum of its proper divisors (755112455).

2145024505 is a wasteful number, since it uses less digits than its factorization.

2145024505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2145024505 is about 46314.4092588905. The cubic root of 2145024505 is about 1289.6665013341. Note that the first 3 decimals are identical.

Adding to 2145024505 its reverse (5054205412), we get a palindrome (7199229917).

The spelling of 2145024505 in words is "two billion, one hundred forty-five million, twenty-four thousand, five hundred five".