2145522300 has 36 divisors (see below), whose sum is σ = 6207712056. Its totient is φ = 572139200.

The previous prime is 2145522277. The next prime is 2145522329. The reversal of 2145522300 is 32255412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3575571 + ... + 3576170.

It is an arithmetic number, because the mean of its divisors is an integer number (172436446).

Almost surely, 2^2145522300 is an apocalyptic number.

2145522300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145522300 is an abundant number, since it is smaller than the sum of its proper divisors (4062189756).

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

2145522300 is a wasteful number, since it uses less digits than its factorization.

2145522300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151758 (or 7151751 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2145522300 is about 46319.7830305799. The cubic root of 2145522300 is about 1289.7662577517.

Adding to 2145522300 its reverse (32255412), we get a palindrome (2177777712).

The spelling of 2145522300 in words is "two billion, one hundred forty-five million, five hundred twenty-two thousand, three hundred".