2145531135 has 16 divisors (see below), whose sum is σ = 3744927360. Its totient is φ = 1040257440.

The previous prime is 2145531131. The next prime is 2145531161. The reversal of 2145531135 is 5311355412.

It is not a de Polignac number, because 2145531135 - 2² = 2145531131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145531131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6501445 + ... + 6501774.

It is an arithmetic number, because the mean of its divisors is an integer number (234057960).

Almost surely, 2^2145531135 is an apocalyptic number.

2145531135 is a deficient number, since it is larger than the sum of its proper divisors (1599396225).

2145531135 is a wasteful number, since it uses less digits than its factorization.

2145531135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003238.

The product of its digits is 9000, while the sum is 30.

The square root of 2145531135 is about 46319.8784000995. The cubic root of 2145531135 is about 1289.7680281161.

Adding to 2145531135 its reverse (5311355412), we get a palindrome (7456886547).

The spelling of 2145531135 in words is "two billion, one hundred forty-five million, five hundred thirty-one thousand, one hundred thirty-five".