2145250135 has 72 divisors (see below), whose sum is σ = 3216731616. Its totient is φ = 1366485120.

The previous prime is 2145250123. The next prime is 2145250139. The reversal of 2145250135 is 5310525412.

It is not a de Polignac number, because 2145250135 - 2¹⁵ = 2145217367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145250139) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27155026 + ... + 27155104.

It is an arithmetic number, because the mean of its divisors is an integer number (44676828).

Almost surely, 2^2145250135 is an apocalyptic number.

2145250135 is a deficient number, since it is larger than the sum of its proper divisors (1071481481).

2145250135 is an equidigital number, since it uses as much as digits as its factorization.

2145250135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2145250135 is about 46316.8450458362. The cubic root of 2145250135 is about 1289.7117187275.

Adding to 2145250135 its reverse (5310525412), we get a palindrome (7455775547).

The spelling of 2145250135 in words is "two billion, one hundred forty-five million, two hundred fifty thousand, one hundred thirty-five".