1157441541 has 4 divisors (see below), whose sum is σ = 1543255392. Its totient is φ = 771627692.

The previous prime is 1157441531. The next prime is 1157441543. The reversal of 1157441541 is 1451447511.

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.

It is a cyclic number.

It is not a de Polignac number, because 1157441541 - 2⁶ = 1157441477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157441543) 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, 192906921 + ... + 192906926.

It is an arithmetic number, because the mean of its divisors is an integer number (385813848).

Almost surely, 2^1157441541 is an apocalyptic number.

It is an amenable number.

1157441541 is a deficient number, since it is larger than the sum of its proper divisors (385813851).

1157441541 is an equidigital number, since it uses as much as digits as its factorization.

1157441541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385813850.

The product of its digits is 11200, while the sum is 33.

The square root of 1157441541 is about 34021.1925275996. The cubic root of 1157441541 is about 1049.9445294959.

The spelling of 1157441541 in words is "one billion, one hundred fifty-seven million, four hundred forty-one thousand, five hundred forty-one".