1141174391 has 4 divisors (see below), whose sum is σ = 1304199312. Its totient is φ = 978149472.

The previous prime is 1141174379. The next prime is 1141174393. The reversal of 1141174391 is 1934711411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1934711411 = 523 ⋅3699257.

It is a cyclic number.

It is not a de Polignac number, because 1141174391 - 2⁶ = 1141174327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141174393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81512450 + ... + 81512463.

It is an arithmetic number, because the mean of its divisors is an integer number (326049828).

Almost surely, 2^1141174391 is an apocalyptic number.

1141174391 is a deficient number, since it is larger than the sum of its proper divisors (163024921).

1141174391 is an equidigital number, since it uses as much as digits as its factorization.

1141174391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163024920.

The product of its digits is 3024, while the sum is 32.

The square root of 1141174391 is about 33781.2727853762. The cubic root of 1141174391 is about 1045.0025231352.

The spelling of 1141174391 in words is "one billion, one hundred forty-one million, one hundred seventy-four thousand, three hundred ninety-one".