1219148056 has 32 divisors (see below), whose sum is σ = 2615235840. Its totient is φ = 521936928.

The previous prime is 1219148017. The next prime is 1219148059. The reversal of 1219148056 is 6508419121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219148059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43975 + ... + 66121.

It is an arithmetic number, because the mean of its divisors is an integer number (81726120).

Almost surely, 2^1219148056 is an apocalyptic number.

It is an amenable number.

1219148056 is an abundant number, since it is smaller than the sum of its proper divisors (1396087784).

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

1219148056 is a wasteful number, since it uses less digits than its factorization.

1219148056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23143 (or 23139 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1219148056 is about 34916.3007204372. The cubic root of 1219148056 is about 1068.2809488721.

The spelling of 1219148056 in words is "one billion, two hundred nineteen million, one hundred forty-eight thousand, fifty-six".