1154541 has 4 divisors (see below), whose sum is σ = 1539392. Its totient is φ = 769692.

The previous prime is 1154539. The next prime is 1154551. The reversal of 1154541 is 1454511.

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 not a de Polignac number, because 1154541 - 2¹ = 1154539 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154551) 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, 192421 + ... + 192426.

It is an arithmetic number, because the mean of its divisors is an integer number (384848).

2^1154541 is an apocalyptic number.

It is an amenable number.

1154541 is a deficient number, since it is larger than the sum of its proper divisors (384851).

1154541 is an equidigital number, since it uses as much as digits as its factorization.

1154541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384850.

The product of its digits is 400, while the sum is 21.

The square root of 1154541 is about 1074.4956956638. The cubic root of 1154541 is about 104.9066744451.

It can be divided in two parts, 115 and 4541, that added together give a triangular number (4656 = T₉₆).

The spelling of 1154541 in words is "one million, one hundred fifty-four thousand, five hundred forty-one".