2145522150 has 72 divisors (see below), whose sum is σ = 5873128560. Its totient is φ = 561337920.

The previous prime is 2145522149. The next prime is 2145522151. The reversal of 2145522150 is 512255412.

It is an interprime number because it is at equal distance from previous prime (2145522149) and next prime (2145522151).

It is a super-2 number, since 2×2145522150² = 9206530592281245000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145522151) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21130 + ... + 68829.

It is an arithmetic number, because the mean of its divisors is an integer number (81571230).

Almost surely, 2^2145522150 is an apocalyptic number.

2145522150 is an abundant number, since it is smaller than the sum of its proper divisors (3727606410).

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

2145522150 is a wasteful number, since it uses less digits than its factorization.

2145522150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90030 (or 90022 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2145522150 is about 46319.7814114013. The cubic root of 2145522150 is about 1289.7662276945.

Adding to 2145522150 its reverse (512255412), we get a palindrome (2657777562).

The spelling of 2145522150 in words is "two billion, one hundred forty-five million, five hundred twenty-two thousand, one hundred fifty".