215214006 has 16 divisors (see below), whose sum is σ = 491917824. Its totient is φ = 61489704.

The previous prime is 215213989. The next prime is 215214047. The reversal of 215214006 is 600412512.

It is a super-3 number, since 3×215214006³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 2562030 + ... + 2562113.

It is an arithmetic number, because the mean of its divisors is an integer number (30744864).

Almost surely, 2^215214006 is an apocalyptic number.

215214006 is an abundant number, since it is smaller than the sum of its proper divisors (276703818).

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

215214006 is a wasteful number, since it uses less digits than its factorization.

215214006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124155.

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

The square root of 215214006 is about 14670.1740275976. The cubic root of 215214006 is about 599.2713432349.

Adding to 215214006 its reverse (600412512), we get a palindrome (815626518).

The spelling of 215214006 in words is "two hundred fifteen million, two hundred fourteen thousand, six".