1331155472 has 40 divisors (see below), whose sum is σ = 2643562944. Its totient is φ = 648998784.

The previous prime is 1331155439. The next prime is 1331155489. The reversal of 1331155472 is 2745511331.

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, 530573 + ... + 533075.

Almost surely, 2^1331155472 is an apocalyptic number.

It is an amenable number.

1331155472 is a deficient number, since it is larger than the sum of its proper divisors (1312407472).

1331155472 is a wasteful number, since it uses less digits than its factorization.

1331155472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327 (or 3321 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 1331155472 is about 36485.0033849526. The cubic root of 1331155472 is about 1100.0428280845.

The spelling of 1331155472 in words is "one billion, three hundred thirty-one million, one hundred fifty-five thousand, four hundred seventy-two".