1131377441 has 8 divisors (see below), whose sum is σ = 1144887744. Its totient is φ = 1117915920.

The previous prime is 1131377419. The next prime is 1131377449. The reversal of 1131377441 is 1447731311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131377441 - 2¹⁴ = 1131361057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131377398 and 1131377407.

It is not an unprimeable number, because it can be changed into a prime (1131377449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35570 + ... + 59396.

It is an arithmetic number, because the mean of its divisors is an integer number (143110968).

Almost surely, 2^1131377441 is an apocalyptic number.

It is an amenable number.

1131377441 is a deficient number, since it is larger than the sum of its proper divisors (13510303).

1131377441 is a wasteful number, since it uses less digits than its factorization.

1131377441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24391.

The product of its digits is 7056, while the sum is 32.

The square root of 1131377441 is about 33635.9545873162. The cubic root of 1131377441 is about 1042.0034853989.

The spelling of 1131377441 in words is "one billion, one hundred thirty-one million, three hundred seventy-seven thousand, four hundred forty-one".