1154742023 has 2 divisors, whose sum is σ = 1154742024. Its totient is φ = 1154742022.

The previous prime is 1154742019. The next prime is 1154742047. The reversal of 1154742023 is 3202474511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154742023 - 2² = 1154742019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154742053) 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 as a sum of consecutive naturals, namely, 577371011 + 577371012.

It is an arithmetic number, because the mean of its divisors is an integer number (577371012).

Almost surely, 2^1154742023 is an apocalyptic number.

1154742023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154742023 is an equidigital number, since it uses as much as digits as its factorization.

1154742023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1154742023 is about 33981.4953025908. The cubic root of 1154742023 is about 1049.1276270310.

The spelling of 1154742023 in words is "one billion, one hundred fifty-four million, seven hundred forty-two thousand, twenty-three".