1154220433 has 8 divisors (see below), whose sum is σ = 1165428000. Its totient is φ = 1143049440.

The previous prime is 1154220391. The next prime is 1154220437. The reversal of 1154220433 is 3340224511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154220433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1154220398 and 1154220407.

It is not an unprimeable number, because it can be changed into a prime (1154220437) 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, 56541 + ... + 74197.

It is an arithmetic number, because the mean of its divisors is an integer number (145678500).

Almost surely, 2^1154220433 is an apocalyptic number.

It is an amenable number.

1154220433 is a deficient number, since it is larger than the sum of its proper divisors (11207567).

1154220433 is a wasteful number, since it uses less digits than its factorization.

1154220433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18287.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1154220433 is about 33973.8198176184. The cubic root of 1154220433 is about 1048.9696417032.

Adding to 1154220433 its reverse (3340224511), we get a palindrome (4494444944).

The spelling of 1154220433 in words is "one billion, one hundred fifty-four million, two hundred twenty thousand, four hundred thirty-three".