1154538971 has 4 divisors (see below), whose sum is σ = 1215304200. Its totient is φ = 1093773744.

The previous prime is 1154538953. The next prime is 1154538977. The reversal of 1154538971 is 1798354511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1798354511 = 7901 ⋅227611.

It is a cyclic number.

It is not a de Polignac number, because 1154538971 - 2¹⁴ = 1154522587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154538977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30382586 + ... + 30382623.

It is an arithmetic number, because the mean of its divisors is an integer number (303826050).

Almost surely, 2^1154538971 is an apocalyptic number.

1154538971 is a deficient number, since it is larger than the sum of its proper divisors (60765229).

1154538971 is an equidigital number, since it uses as much as digits as its factorization.

1154538971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60765228.

The product of its digits is 151200, while the sum is 44.

The square root of 1154538971 is about 33978.5074863508. The cubic root of 1154538971 is about 1049.0661299040.

The spelling of 1154538971 in words is "one billion, one hundred fifty-four million, five hundred thirty-eight thousand, nine hundred seventy-one".