1215166150 has 48 divisors (see below), whose sum is σ = 2496983040. Its totient is φ = 436269600.

The previous prime is 1215166133. The next prime is 1215166157. The reversal of 1215166150 is 516615121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215166157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29467 + ... + 57433.

It is an arithmetic number, because the mean of its divisors is an integer number (52020480).

Almost surely, 2^1215166150 is an apocalyptic number.

1215166150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215166150 is an abundant number, since it is smaller than the sum of its proper divisors (1281816890).

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

1215166150 is a wasteful number, since it uses less digits than its factorization.

1215166150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28069 (or 28064 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1215166150 is about 34859.2333535894. The cubic root of 1215166150 is about 1067.1166292800.

The spelling of 1215166150 in words is "one billion, two hundred fifteen million, one hundred sixty-six thousand, one hundred fifty".