1141392409 has 4 divisors (see below), whose sum is σ = 1141776000. Its totient is φ = 1141008820.

The previous prime is 1141392403. The next prime is 1141392451. The reversal of 1141392409 is 9042931411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9042931411 = 653 ⋅13848287.

It is a cyclic number.

It is not a de Polignac number, because 1141392409 - 2³ = 1141392401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141392401) 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, 187297 + ... + 193294.

It is an arithmetic number, because the mean of its divisors is an integer number (285444000).

Almost surely, 2^1141392409 is an apocalyptic number.

It is an amenable number.

1141392409 is a deficient number, since it is larger than the sum of its proper divisors (383591).

1141392409 is an equidigital number, since it uses as much as digits as its factorization.

1141392409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383590.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1141392409 is about 33784.4995375098. The cubic root of 1141392409 is about 1045.0690671138.

The spelling of 1141392409 in words is "one billion, one hundred forty-one million, three hundred ninety-two thousand, four hundred nine".