1154473729 has 2 divisors, whose sum is σ = 1154473730. Its totient is φ = 1154473728.

The previous prime is 1154473699. The next prime is 1154473783. The reversal of 1154473729 is 9273744511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1114024129 + 40449600 = 33377^2 + 6360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1154473729 - 2⁷ = 1154473601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154474729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577236864 + 577236865.

It is an arithmetic number, because the mean of its divisors is an integer number (577236865).

Almost surely, 2^1154473729 is an apocalyptic number.

It is an amenable number.

1154473729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154473729 is an equidigital number, since it uses as much as digits as its factorization.

1154473729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 1154473729 is about 33977.5474247333. The cubic root of 1154473729 is about 1049.0463689248.

The spelling of 1154473729 in words is "one billion, one hundred fifty-four million, four hundred seventy-three thousand, seven hundred twenty-nine".