1141020577 has 4 divisors (see below), whose sum is σ = 1141093296. Its totient is φ = 1140947860.

The previous prime is 1141020571. The next prime is 1141020581. The reversal of 1141020577 is 7750201411.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141020577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141020571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999 + ... + 47812.

It is an arithmetic number, because the mean of its divisors is an integer number (285273324).

Almost surely, 2^1141020577 is an apocalyptic number.

It is an amenable number.

1141020577 is a deficient number, since it is larger than the sum of its proper divisors (72719).

1141020577 is an equidigital number, since it uses as much as digits as its factorization.

1141020577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72718.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1141020577 is about 33778.9960922464. The cubic root of 1141020577 is about 1044.9555705567.

Adding to 1141020577 its reverse (7750201411), we get a palindrome (8891221988).

The spelling of 1141020577 in words is "one billion, one hundred forty-one million, twenty thousand, five hundred seventy-seven".