2145531010 has 64 divisors (see below), whose sum is σ = 4567622400. Its totient is φ = 710341632.

The previous prime is 2145531007. The next prime is 2145531023. The reversal of 2145531010 is 101355412.

It is a happy number.

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, 263886 + ... + 271894.

It is an arithmetic number, because the mean of its divisors is an integer number (71369100).

Almost surely, 2^2145531010 is an apocalyptic number.

2145531010 is an abundant number, since it is smaller than the sum of its proper divisors (2422091390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145531010 is a wasteful number, since it uses less digits than its factorization.

2145531010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2145531010 is about 46319.8770507867. The cubic root of 2145531010 is about 1289.7680030685.

Adding to 2145531010 its reverse (101355412), we get a palindrome (2246886422).

The spelling of 2145531010 in words is "two billion, one hundred forty-five million, five hundred thirty-one thousand, ten".