1219332985 has 32 divisors (see below), whose sum is σ = 1664893440. Its totient is φ = 850821888.

The previous prime is 1219332977. The next prime is 1219333001. The reversal of 1219332985 is 5892339121.

1219332985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1219332985 - 2³ = 1219332977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81714 + ... + 95476.

It is an arithmetic number, because the mean of its divisors is an integer number (52027920).

Almost surely, 2^1219332985 is an apocalyptic number.

It is an amenable number.

1219332985 is a deficient number, since it is larger than the sum of its proper divisors (445560455).

1219332985 is a wasteful number, since it uses less digits than its factorization.

1219332985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13857.

The product of its digits is 116640, while the sum is 43.

The square root of 1219332985 is about 34918.9487957470. The cubic root of 1219332985 is about 1068.3349609446.

The spelling of 1219332985 in words is "one billion, two hundred nineteen million, three hundred thirty-two thousand, nine hundred eighty-five".