1151605153 has 4 divisors (see below), whose sum is σ = 1170483988. Its totient is φ = 1132726320.

The previous prime is 1151605151. The next prime is 1151605207. The reversal of 1151605153 is 3515061511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20493729 + 1131111424 = 4527^2 + 33632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151605153 - 2¹ = 1151605151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151605151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9439326 + ... + 9439447.

It is an arithmetic number, because the mean of its divisors is an integer number (292620997).

Almost surely, 2^1151605153 is an apocalyptic number.

It is an amenable number.

1151605153 is a deficient number, since it is larger than the sum of its proper divisors (18878835).

1151605153 is an equidigital number, since it uses as much as digits as its factorization.

1151605153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18878834.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 1151605153 is about 33935.3083528056. The cubic root of 1151605153 is about 1048.1767764192.

Adding to 1151605153 its reverse (3515061511), we get a palindrome (4666666664).

The spelling of 1151605153 in words is "one billion, one hundred fifty-one million, six hundred five thousand, one hundred fifty-three".