215015030 has 16 divisors (see below), whose sum is σ = 387370944. Its totient is φ = 85929600.

The previous prime is 215015027. The next prime is 215015033. The reversal of 215015030 is 30510512.

It is an interprime number because it is at equal distance from previous prime (215015027) and next prime (215015033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215015033) 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, 3059 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (24210684).

Almost surely, 2^215015030 is an apocalyptic number.

215015030 is a deficient number, since it is larger than the sum of its proper divisors (172355914).

215015030 is a wasteful number, since it uses less digits than its factorization.

215015030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19111.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 215015030 is about 14663.3908084044. The cubic root of 215015030 is about 599.0866009500.

Adding to 215015030 its reverse (30510512), we get a palindrome (245525542).

The spelling of 215015030 in words is "two hundred fifteen million, fifteen thousand, thirty".