1150355461 has 4 divisors (see below), whose sum is σ = 1150433452. Its totient is φ = 1150277472.

The previous prime is 1150355449. The next prime is 1150355477. The reversal of 1150355461 is 1645530511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 613552900 + 536802561 = 24770^2 + 23169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150355461 - 2⁷ = 1150355333 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 (1150755461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9366 + ... + 48871.

It is an arithmetic number, because the mean of its divisors is an integer number (287608363).

Almost surely, 2^1150355461 is an apocalyptic number.

It is an amenable number.

1150355461 is a deficient number, since it is larger than the sum of its proper divisors (77991).

1150355461 is an equidigital number, since it uses as much as digits as its factorization.

1150355461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77990.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1150355461 is about 33916.8904972139. The cubic root of 1150355461 is about 1047.7974877839.

Adding to 1150355461 its reverse (1645530511), we get a palindrome (2795885972).

The spelling of 1150355461 in words is "one billion, one hundred fifty million, three hundred fifty-five thousand, four hundred sixty-one".