1154241141 has 4 divisors (see below), whose sum is σ = 1538988192. Its totient is φ = 769494092.

The previous prime is 1154241139. The next prime is 1154241161. The reversal of 1154241141 is 1411424511.

It is a happy number.

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 1154241141 - 2¹ = 1154241139 is a prime.

It is a super-2 number, since 2×1154241141² = 2664545223153963762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154241161) 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, 192373521 + ... + 192373526.

It is an arithmetic number, because the mean of its divisors is an integer number (384747048).

Almost surely, 2^1154241141 is an apocalyptic number.

It is an amenable number.

1154241141 is a deficient number, since it is larger than the sum of its proper divisors (384747051).

1154241141 is an equidigital number, since it uses as much as digits as its factorization.

1154241141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384747050.

The product of its digits is 640, while the sum is 24.

The square root of 1154241141 is about 33974.1245803332. The cubic root of 1154241141 is about 1048.9759148936.

Adding to 1154241141 its reverse (1411424511), we get a palindrome (2565665652).

The spelling of 1154241141 in words is "one billion, one hundred fifty-four million, two hundred forty-one thousand, one hundred forty-one".