1151224145 has 8 divisors (see below), whose sum is σ = 1383358056. Its totient is φ = 919719936.

The previous prime is 1151224121. The next prime is 1151224169. The reversal of 1151224145 is 5414221511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1151224121) and next prime (1151224169).

It can be written as a sum of positive squares in 4 ways, for example, as 660335809 + 490888336 = 25697^2 + 22156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151224145 - 2¹⁶ = 1151158609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 153392 + ... + 160721.

It is an arithmetic number, because the mean of its divisors is an integer number (172919757).

Almost surely, 2^1151224145 is an apocalyptic number.

It is an amenable number.

1151224145 is a deficient number, since it is larger than the sum of its proper divisors (232133911).

1151224145 is an equidigital number, since it uses as much as digits as its factorization.

1151224145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314851.

The product of its digits is 1600, while the sum is 26.

The square root of 1151224145 is about 33929.6941483415. The cubic root of 1151224145 is about 1048.0611674110.

Adding to 1151224145 its reverse (5414221511), we get a palindrome (6565445656).

The spelling of 1151224145 in words is "one billion, one hundred fifty-one million, two hundred twenty-four thousand, one hundred forty-five".