1216471150 has 48 divisors (see below), whose sum is σ = 2399855328. Its totient is φ = 457776000.

The previous prime is 1216471147. The next prime is 1216471171. The reversal of 1216471150 is 511746121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61480 + ... + 78820.

It is an arithmetic number, because the mean of its divisors is an integer number (49996986).

Almost surely, 2^1216471150 is an apocalyptic number.

1216471150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216471150 is a deficient number, since it is larger than the sum of its proper divisors (1183384178).

1216471150 is a wasteful number, since it uses less digits than its factorization.

1216471150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17437 (or 17432 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1216471150 is about 34877.9464705134. The cubic root of 1216471150 is about 1067.4984944776.

The spelling of 1216471150 in words is "one billion, two hundred sixteen million, four hundred seventy-one thousand, one hundred fifty".