1150545401 has 4 divisors (see below), whose sum is σ = 1150663332. Its totient is φ = 1150427472.

The previous prime is 1150545349. The next prime is 1150545413. The reversal of 1150545401 is 1045450511.

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 27290176 + 1123255225 = 5224^2 + 33515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150545401 - 2⁶ = 1150545337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150545001) 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, 42866 + ... + 64331.

It is an arithmetic number, because the mean of its divisors is an integer number (287665833).

Almost surely, 2^1150545401 is an apocalyptic number.

It is an amenable number.

1150545401 is a deficient number, since it is larger than the sum of its proper divisors (117931).

1150545401 is a wasteful number, since it uses less digits than its factorization.

1150545401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117930.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1150545401 is about 33919.6904614414. The cubic root of 1150545401 is about 1047.8551533516.

Adding to 1150545401 its reverse (1045450511), we get a palindrome (2195995912).

The spelling of 1150545401 in words is "one billion, one hundred fifty million, five hundred forty-five thousand, four hundred one".