1154015189 has 2 divisors, whose sum is σ = 1154015190. Its totient is φ = 1154015188.

The previous prime is 1154015143. The next prime is 1154015197. The reversal of 1154015189 is 9815104511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1153960900 + 54289 = 33970^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1154015189 - 2²⁴ = 1137237973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154015119) 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, 577007594 + 577007595.

It is an arithmetic number, because the mean of its divisors is an integer number (577007595).

Almost surely, 2^1154015189 is an apocalyptic number.

It is an amenable number.

1154015189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154015189 is an equidigital number, since it uses as much as digits as its factorization.

1154015189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 35.

The square root of 1154015189 is about 33970.7990633132. The cubic root of 1154015189 is about 1048.9074619319.

The spelling of 1154015189 in words is "one billion, one hundred fifty-four million, fifteen thousand, one hundred eighty-nine".