215144130 has 16 divisors (see below), whose sum is σ = 516345984. Its totient is φ = 57371760.

The previous prime is 215144113. The next prime is 215144131. The reversal of 215144130 is 31441512.

215144130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215144097 and 215144106.

It is not an unprimeable number, because it can be changed into a prime (215144131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3585706 + ... + 3585765.

It is an arithmetic number, because the mean of its divisors is an integer number (32271624).

Almost surely, 2^215144130 is an apocalyptic number.

215144130 is an abundant number, since it is smaller than the sum of its proper divisors (301201854).

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

215144130 is a wasteful number, since it uses less digits than its factorization.

215144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7171481.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 215144130 is about 14667.7922674137. The cubic root of 215144130 is about 599.2064787806.

Adding to 215144130 its reverse (31441512), we get a palindrome (246585642).

The spelling of 215144130 in words is "two hundred fifteen million, one hundred forty-four thousand, one hundred thirty".