2145304315 has 32 divisors (see below), whose sum is σ = 3313152000. Its totient is φ = 1294185600.

The previous prime is 2145304313. The next prime is 2145304333. The reversal of 2145304315 is 5134035412.

It is not a de Polignac number, because 2145304315 - 2¹ = 2145304313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145304313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77940 + ... + 101809.

It is an arithmetic number, because the mean of its divisors is an integer number (103536000).

Almost surely, 2^2145304315 is an apocalyptic number.

2145304315 is a deficient number, since it is larger than the sum of its proper divisors (1167847685).

2145304315 is a wasteful number, since it uses less digits than its factorization.

2145304315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179803.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2145304315 is about 46317.4299265406. The cubic root of 2145304315 is about 1289.7225762015.

Adding to 2145304315 its reverse (5134035412), we get a palindrome (7279339727).

The spelling of 2145304315 in words is "two billion, one hundred forty-five million, three hundred four thousand, three hundred fifteen".