1132940981 has 4 divisors (see below), whose sum is σ = 1143940512. Its totient is φ = 1121941452.

The previous prime is 1132940971. The next prime is 1132941001. The reversal of 1132940981 is 1890492311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1132940981 - 2⁶ = 1132940917 is a prime.

It is a super-2 number, since 2×1132940981² = 2567110532858484722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132940971) 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, 5499611 + ... + 5499816.

It is an arithmetic number, because the mean of its divisors is an integer number (285985128).

Almost surely, 2^1132940981 is an apocalyptic number.

It is an amenable number.

1132940981 is a deficient number, since it is larger than the sum of its proper divisors (10999531).

1132940981 is a wasteful number, since it uses less digits than its factorization.

1132940981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10999530.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1132940981 is about 33659.1886562941. The cubic root of 1132940981 is about 1042.4832734676.

The spelling of 1132940981 in words is "one billion, one hundred thirty-two million, nine hundred forty thousand, nine hundred eighty-one".