2145315 has 32 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 1048064.

The previous prime is 2145307. The next prime is 2145329. The reversal of 2145315 is 5135412.

It is a cyclic number.

It is not a de Polignac number, because 2145315 - 2³ = 2145307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145291 and 2145300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11896 + ... + 12074.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

2^2145315 is an apocalyptic number.

2145315 is a deficient number, since it is larger than the sum of its proper divisors (1587165).

2145315 is a wasteful number, since it uses less digits than its factorization.

2145315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its digits is 600, while the sum is 21.

The square root of 2145315 is about 1464.6893868667. The cubic root of 2145315 is about 128.9724717415.

The spelling of 2145315 in words is "two million, one hundred forty-five thousand, three hundred fifteen".