1154462143 has 4 divisors (see below), whose sum is σ = 1157732928. Its totient is φ = 1151191360.

The previous prime is 1154462119. The next prime is 1154462159. The reversal of 1154462143 is 3412644511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1154462143 - 2¹⁷ = 1154331071 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (1154460143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634863 + ... + 1635568.

It is an arithmetic number, because the mean of its divisors is an integer number (289433232).

Almost surely, 2^1154462143 is an apocalyptic number.

1154462143 is a deficient number, since it is larger than the sum of its proper divisors (3270785).

1154462143 is an equidigital number, since it uses as much as digits as its factorization.

1154462143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270784.

The product of its digits is 11520, while the sum is 31.

The square root of 1154462143 is about 33977.3769293629. The cubic root of 1154462143 is about 1049.0428595936.

The spelling of 1154462143 in words is "one billion, one hundred fifty-four million, four hundred sixty-two thousand, one hundred forty-three".