1132543957 has 4 divisors (see below), whose sum is σ = 1145269260. Its totient is φ = 1119818656.

The previous prime is 1132543949. The next prime is 1132543991. The reversal of 1132543957 is 7593452311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7593452311 = 163 ⋅46585597.

It can be written as a sum of positive squares in 2 ways, for example, as 265005841 + 867538116 = 16279^2 + 29454^2 .

It is a cyclic number.

It is not a de Polignac number, because 1132543957 - 2³ = 1132543949 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132543157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6362518 + ... + 6362695.

It is an arithmetic number, because the mean of its divisors is an integer number (286317315).

Almost surely, 2^1132543957 is an apocalyptic number.

It is an amenable number.

1132543957 is a deficient number, since it is larger than the sum of its proper divisors (12725303).

1132543957 is an equidigital number, since it uses as much as digits as its factorization.

1132543957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12725302.

The product of its digits is 113400, while the sum is 40.

The square root of 1132543957 is about 33653.2904334777. The cubic root of 1132543957 is about 1042.3614844709.

The spelling of 1132543957 in words is "one billion, one hundred thirty-two million, five hundred forty-three thousand, nine hundred fifty-seven".