1215254214 has 48 divisors (see below), whose sum is σ = 2826178992. Its totient is φ = 376026624.

The previous prime is 1215254213. The next prime is 1215254239. The reversal of 1215254214 is 4124525121.

It is a happy number.

1215254214 is a `hidden beast` number, since 1 + 215 + 25 + 421 + 4 = 666.

1215254214 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215254213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4864 + ... + 49539.

It is an arithmetic number, because the mean of its divisors is an integer number (58878729).

Almost surely, 2^1215254214 is an apocalyptic number.

1215254214 is an abundant number, since it is smaller than the sum of its proper divisors (1610924778).

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

1215254214 is a wasteful number, since it uses less digits than its factorization.

1215254214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54501 (or 54498 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1215254214 is about 34860.4964680654. The cubic root of 1215254214 is about 1067.1424069042.

Adding to 1215254214 its reverse (4124525121), we get a palindrome (5339779335).

It can be divided in two parts, 121525421 and 4, that multiplied together give a palindrome (486101684).

The spelling of 1215254214 in words is "one billion, two hundred fifteen million, two hundred fifty-four thousand, two hundred fourteen".