1131214409 has 8 divisors (see below), whose sum is σ = 1220718912. Its totient is φ = 1042065360.

The previous prime is 1131214393. The next prime is 1131214417. The reversal of 1131214409 is 9044121311.

It is a happy number.

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 1131214409 - 2⁴ = 1131214393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131214309) 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, 82229 + ... + 94994.

It is an arithmetic number, because the mean of its divisors is an integer number (152589864).

Almost surely, 2^1131214409 is an apocalyptic number.

It is an amenable number.

1131214409 is a deficient number, since it is larger than the sum of its proper divisors (89504503).

1131214409 is a wasteful number, since it uses less digits than its factorization.

1131214409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177727.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1131214409 is about 33633.5310218835. The cubic root of 1131214409 is about 1041.9534319371.

The spelling of 1131214409 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, four hundred nine".