215700130 has 16 divisors (see below), whose sum is σ = 393729984. Its totient is φ = 85064560.

The previous prime is 215700127. The next prime is 215700143. The reversal of 215700130 is 31007512.

215700130 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 = 215700098 and 215700107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151192 + ... + 152611.

It is an arithmetic number, because the mean of its divisors is an integer number (24608124).

Almost surely, 2^215700130 is an apocalyptic number.

215700130 is a deficient number, since it is larger than the sum of its proper divisors (178029854).

215700130 is a wasteful number, since it uses less digits than its factorization.

215700130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303881.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 215700130 is about 14686.7331289160. The cubic root of 215700130 is about 599.7222140040.

Adding to 215700130 its reverse (31007512), we get a palindrome (246707642).

The spelling of 215700130 in words is "two hundred fifteen million, seven hundred thousand, one hundred thirty".