215130276 has 24 divisors (see below), whose sum is σ = 557745440. Its totient is φ = 71710056.

The previous prime is 215130263. The next prime is 215130283. The reversal of 215130276 is 672031512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995866 + ... + 996081.

Almost surely, 2^215130276 is an apocalyptic number.

It is an amenable number.

215130276 is an abundant number, since it is smaller than the sum of its proper divisors (342615164).

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

215130276 is a wasteful number, since it uses less digits than its factorization.

215130276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991960 (or 1991952 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 215130276 is about 14667.3200006000. The cubic root of 215130276 is about 599.1936167289.

Adding to 215130276 its reverse (672031512), we get a palindrome (887161788).

The spelling of 215130276 in words is "two hundred fifteen million, one hundred thirty thousand, two hundred seventy-six".