1019181252 has 12 divisors (see below), whose sum is σ = 2378089616. Its totient is φ = 339727080.

The previous prime is 1019181211. The next prime is 1019181269. The reversal of 1019181252 is 2521819101.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42465874 + ... + 42465897.

Almost surely, 2^1019181252 is an apocalyptic number.

1019181252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1019181252 is an abundant number, since it is smaller than the sum of its proper divisors (1358908364).

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

1019181252 is a wasteful number, since it uses less digits than its factorization.

1019181252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84931778 (or 84931776 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 1019181252 is about 31924.6182749301. The cubic root of 1019181252 is about 1006.3533007537.

The spelling of 1019181252 in words is "one billion, nineteen million, one hundred eighty-one thousand, two hundred fifty-two".