1217216152 has 32 divisors (see below), whose sum is σ = 2453529600. Its totient is φ = 564305184.

The previous prime is 1217216141. The next prime is 1217216173. The reversal of 1217216152 is 2516127121.

It is a self number, because there is not a number n which added to its sum of digits gives 1217216152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78048 + ... + 92335.

It is an arithmetic number, because the mean of its divisors is an integer number (76672800).

Almost surely, 2^1217216152 is an apocalyptic number.

It is an amenable number.

1217216152 is an abundant number, since it is smaller than the sum of its proper divisors (1236313448).

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

1217216152 is a wasteful number, since it uses less digits than its factorization.

1217216152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170455 (or 170451 counting only the distinct ones).

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

The square root of 1217216152 is about 34888.6249657392. The cubic root of 1217216152 is about 1067.7163722892.

The spelling of 1217216152 in words is "one billion, two hundred seventeen million, two hundred sixteen thousand, one hundred fifty-two".