1141955472 has 80 divisors (see below), whose sum is σ = 3449937920. Its totient is φ = 318681216.

The previous prime is 1141955471. The next prime is 1141955557. The reversal of 1141955472 is 2745591411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1141955472.

It is not an unprimeable number, because it can be changed into a prime (1141955471) 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 15 ways as a sum of consecutive naturals, for example, 25072 + ... + 53967.

It is an arithmetic number, because the mean of its divisors is an integer number (43124224).

Almost surely, 2^1141955472 is an apocalyptic number.

1141955472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1141955472 is an abundant number, since it is smaller than the sum of its proper divisors (2307982448).

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

1141955472 is a wasteful number, since it uses less digits than its factorization.

1141955472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79100 (or 79094 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 1141955472 is about 33792.8316659022. The cubic root of 1141955472 is about 1045.2408873644.

The spelling of 1141955472 in words is "one billion, one hundred forty-one million, nine hundred fifty-five thousand, four hundred seventy-two".