215101412 has 6 divisors (see below), whose sum is σ = 376427478. Its totient is φ = 107550704.

The previous prime is 215101379. The next prime is 215101421. The reversal of 215101412 is 214101512.

It can be written as a sum of positive squares in only one way, i.e., 178329316 + 36772096 = 13354^2 + 6064^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26887673 + ... + 26887680.

It is an arithmetic number, because the mean of its divisors is an integer number (62737913).

Almost surely, 2^215101412 is an apocalyptic number.

It is an amenable number.

215101412 is a deficient number, since it is larger than the sum of its proper divisors (161326066).

215101412 is a wasteful number, since it uses less digits than its factorization.

215101412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53775357 (or 53775355 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 215101412 is about 14666.3360114243. The cubic root of 215101412 is about 599.1668176215.

Adding to 215101412 its reverse (214101512), we get a palindrome (429202924).

It can be divided in two parts, 21510 and 1412, that added together give a palindrome (22922).

The spelling of 215101412 in words is "two hundred fifteen million, one hundred one thousand, four hundred twelve".