1271855232 has 48 divisors (see below), whose sum is σ = 3659899230. Its totient is φ = 423951360.

The previous prime is 1271855183. The next prime is 1271855267. The reversal of 1271855232 is 2325581721.

1271855232 is a `hidden beast` number, since 1 + 2 + 71 + 8 + 552 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1063803456 + 208051776 = 32616^2 + 14424^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550869 + ... + 553172.

Almost surely, 2^1271855232 is an apocalyptic number.

1271855232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1271855232 is an abundant number, since it is smaller than the sum of its proper divisors (2388043998).

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

1271855232 is a wasteful number, since it uses less digits than its factorization.

1271855232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104061 (or 1104046 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1271855232 is about 35663.0793959243. The cubic root of 1271855232 is about 1083.4591965691.

The spelling of 1271855232 in words is "one billion, two hundred seventy-one million, eight hundred fifty-five thousand, two hundred thirty-two".