2155152030 has 32 divisors (see below), whose sum is σ = 5206629888. Its totient is φ = 570900000.

The previous prime is 2155152019. The next prime is 2155152037. The reversal of 2155152030 is 302515512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155152037) 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, 233346 + ... + 242405.

It is an arithmetic number, because the mean of its divisors is an integer number (162707184).

Almost surely, 2^2155152030 is an apocalyptic number.

2155152030 is an abundant number, since it is smaller than the sum of its proper divisors (3051477858).

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

2155152030 is a wasteful number, since it uses less digits than its factorization.

2155152030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475912.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2155152030 is about 46423.6150035733. The cubic root of 2155152030 is about 1291.6929937795.

Adding to 2155152030 its reverse (302515512), we get a palindrome (2457667542).

The spelling of 2155152030 in words is "two billion, one hundred fifty-five million, one hundred fifty-two thousand, thirty".