215030154 has 8 divisors (see below), whose sum is σ = 430060320. Its totient is φ = 71676716.

The previous prime is 215030149. The next prime is 215030171. The reversal of 215030154 is 451030512.

It is a sphenic number, since it is the product of 3 distinct primes.

215030154 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 215030154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17919174 + ... + 17919185.

It is an arithmetic number, because the mean of its divisors is an integer number (53757540).

Almost surely, 2^215030154 is an apocalyptic number.

215030154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

215030154 is a wasteful number, since it uses less digits than its factorization.

215030154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35838364.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 215030154 is about 14663.9065054303. The cubic root of 215030154 is about 599.1006470585.

Adding to 215030154 its reverse (451030512), we get a palindrome (666060666).

The spelling of 215030154 in words is "two hundred fifteen million, thirty thousand, one hundred fifty-four".