2145250331115 has 64 divisors (see below), whose sum is σ = 3529512430080. Its totient is φ = 1112234250240.

The previous prime is 2145250331113. The next prime is 2145250331131. The reversal of 2145250331115 is 5111330525412.

It is not a de Polignac number, because 2145250331115 - 2¹ = 2145250331113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145250331111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65573592 + ... + 65606298.

It is an arithmetic number, because the mean of its divisors is an integer number (55148631720).

Almost surely, 2^{2145250331115} is an apocalyptic number.

2145250331115 is a deficient number, since it is larger than the sum of its proper divisors (1384262098965).

2145250331115 is a wasteful number, since it uses less digits than its factorization.

2145250331115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33612.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 2145250331115 its reverse (5111330525412), we get a palindrome (7256580856527).

The spelling of 2145250331115 in words is "two trillion, one hundred forty-five billion, two hundred fifty million, three hundred thirty-one thousand, one hundred fifteen".