1145523133 has 8 divisors (see below), whose sum is σ = 1154822688. Its totient is φ = 1136254704.

The previous prime is 1145523103. The next prime is 1145523143. The reversal of 1145523133 is 3313255411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145523133 - 2⁹ = 1145522621 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 (1145523103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69166 + ... + 84112.

It is an arithmetic number, because the mean of its divisors is an integer number (144352836).

Almost surely, 2^1145523133 is an apocalyptic number.

It is an amenable number.

1145523133 is a deficient number, since it is larger than the sum of its proper divisors (9299555).

1145523133 is a wasteful number, since it uses less digits than its factorization.

1145523133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15563.

The product of its digits is 5400, while the sum is 28.

The square root of 1145523133 is about 33845.5777465831. The cubic root of 1145523133 is about 1046.3282585617.

Adding to 1145523133 its reverse (3313255411), we get a palindrome (4458778544).

The spelling of 1145523133 in words is "one billion, one hundred forty-five million, five hundred twenty-three thousand, one hundred thirty-three".