1157105472 has 56 divisors (see below), whose sum is σ = 3222650400. Its totient is φ = 365400576.

The previous prime is 1157105461. The next prime is 1157105479. The reversal of 1157105472 is 2745017511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157105479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154947 + ... + 162242.

Almost surely, 2^1157105472 is an apocalyptic number.

1157105472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1157105472 is an abundant number, since it is smaller than the sum of its proper divisors (2065544928).

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

1157105472 is a wasteful number, since it uses less digits than its factorization.

1157105472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317223 (or 317213 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 1157105472 is about 34016.2530564435. The cubic root of 1157105472 is about 1049.8429007593.

The spelling of 1157105472 in words is "one billion, one hundred fifty-seven million, one hundred five thousand, four hundred seventy-two".