1141073921 has 4 divisors (see below), whose sum is σ = 1228848852. Its totient is φ = 1053298992.

The previous prime is 1141073917. The next prime is 1141073939. The reversal of 1141073921 is 1293701411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131423296 + 1009650625 = 11464^2 + 31775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141073921 - 2² = 1141073917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1141073951) 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, 43887446 + ... + 43887471.

It is an arithmetic number, because the mean of its divisors is an integer number (307212213).

Almost surely, 2^1141073921 is an apocalyptic number.

It is an amenable number.

1141073921 is a deficient number, since it is larger than the sum of its proper divisors (87774931).

1141073921 is an equidigital number, since it uses as much as digits as its factorization.

1141073921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87774930.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1141073921 is about 33779.7856861171. The cubic root of 1141073921 is about 1044.9718545871.

The spelling of 1141073921 in words is "one billion, one hundred forty-one million, seventy-three thousand, nine hundred twenty-one".