1154254229 has 4 divisors (see below), whose sum is σ = 1173817920. Its totient is φ = 1134690540.

The previous prime is 1154254163. The next prime is 1154254243. The reversal of 1154254229 is 9224524511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1154254229 - 2⁸ = 1154253973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154254249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9781757 + ... + 9781874.

It is an arithmetic number, because the mean of its divisors is an integer number (293454480).

Almost surely, 2^1154254229 is an apocalyptic number.

It is an amenable number.

1154254229 is a deficient number, since it is larger than the sum of its proper divisors (19563691).

1154254229 is an equidigital number, since it uses as much as digits as its factorization.

1154254229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19563690.

The product of its digits is 28800, while the sum is 35.

The square root of 1154254229 is about 33974.3171969651. The cubic root of 1154254229 is about 1048.9798796760.

The spelling of 1154254229 in words is "one billion, one hundred fifty-four million, two hundred fifty-four thousand, two hundred twenty-nine".