1145506633 has 4 divisors (see below), whose sum is σ = 1146220180. Its totient is φ = 1144793088.

The previous prime is 1145506577. The next prime is 1145506679. The reversal of 1145506633 is 3366055411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3366055411 = 67 ⋅50239633.

It can be written as a sum of positive squares in 2 ways, for example, as 511121664 + 634384969 = 22608^2 + 25187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145506633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145507633) 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, 354360 + ... + 357577.

It is an arithmetic number, because the mean of its divisors is an integer number (286555045).

Almost surely, 2^1145506633 is an apocalyptic number.

It is an amenable number.

1145506633 is a deficient number, since it is larger than the sum of its proper divisors (713547).

1145506633 is an equidigital number, since it uses as much as digits as its factorization.

1145506633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713546.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1145506633 is about 33845.3339915564. Note that the first 3 decimals coincide. The cubic root of 1145506633 is about 1046.3232348019.

The spelling of 1145506633 in words is "one billion, one hundred forty-five million, five hundred six thousand, six hundred thirty-three".