1131407973 has 16 divisors (see below), whose sum is σ = 1749037440. Its totient is φ = 721477152.

The previous prime is 1131407971. The next prime is 1131407983. The reversal of 1131407973 is 3797041311.

It is not a de Polignac number, because 1131407973 - 2¹ = 1131407971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131407971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910336 + ... + 911577.

It is an arithmetic number, because the mean of its divisors is an integer number (109314840).

Almost surely, 2^1131407973 is an apocalyptic number.

It is an amenable number.

1131407973 is a deficient number, since it is larger than the sum of its proper divisors (617629467).

1131407973 is a wasteful number, since it uses less digits than its factorization.

1131407973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821945 (or 1821939 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 1131407973 is about 33636.4084438276. The cubic root of 1131407973 is about 1042.0128586823.

The spelling of 1131407973 in words is "one billion, one hundred thirty-one million, four hundred seven thousand, nine hundred seventy-three".