1145303541 has 12 divisors (see below), whose sum is σ = 1671383532. Its totient is φ = 755663616.

The previous prime is 1145303519. The next prime is 1145303557. The reversal of 1145303541 is 1453035411.

It is a happy number.

1145303541 is a `hidden beast` number, since 114 + 5 + 3 + 0 + 3 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 564252516 + 581051025 = 23754^2 + 24105^2 .

It is not a de Polignac number, because 1145303541 - 2¹⁸ = 1145041397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145303591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 655086 + ... + 656831.

It is an arithmetic number, because the mean of its divisors is an integer number (139281961).

Almost surely, 2^1145303541 is an apocalyptic number.

It is an amenable number.

1145303541 is a deficient number, since it is larger than the sum of its proper divisors (526079991).

1145303541 is a wasteful number, since it uses less digits than its factorization.

1145303541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312020 (or 1312017 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1145303541 is about 33842.3335631573. Note that the first 3 decimals coincide. The cubic root of 1145303541 is about 1046.2613953701.

Adding to 1145303541 its reverse (1453035411), we get a palindrome (2598338952).

The spelling of 1145303541 in words is "one billion, one hundred forty-five million, three hundred three thousand, five hundred forty-one".