1151450305 has 4 divisors (see below), whose sum is σ = 1381740372. Its totient is φ = 921160240.

The previous prime is 1151450297. The next prime is 1151450309. The reversal of 1151450305 is 5030541511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5030541511 = 24907 ⋅201973.

It can be written as a sum of positive squares in 2 ways, for example, as 359140401 + 792309904 = 18951^2 + 28148^2 .

It is not a de Polignac number, because 1151450305 - 2³ = 1151450297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151450305.

It is not an unprimeable number, because it can be changed into a prime (1151450309) 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, 115145026 + ... + 115145035.

It is an arithmetic number, because the mean of its divisors is an integer number (345435093).

Almost surely, 2^1151450305 is an apocalyptic number.

It is an amenable number.

1151450305 is a deficient number, since it is larger than the sum of its proper divisors (230290067).

1151450305 is an equidigital number, since it uses as much as digits as its factorization.

1151450305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230290066.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1151450305 is about 33933.0267586020. The cubic root of 1151450305 is about 1048.1297940681.

Adding to 1151450305 its reverse (5030541511), we get a palindrome (6181991816).

The spelling of 1151450305 in words is "one billion, one hundred fifty-one million, four hundred fifty thousand, three hundred five".