1133421405 has 8 divisors (see below), whose sum is σ = 1813474272. Its totient is φ = 604491408.

The previous prime is 1133421389. The next prime is 1133421409. The reversal of 1133421405 is 5041243311.

It is a happy number.

1133421405 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1133421405 - 2⁴ = 1133421389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133421409) 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, 37780699 + ... + 37780728.

It is an arithmetic number, because the mean of its divisors is an integer number (226684284).

Almost surely, 2^1133421405 is an apocalyptic number.

1133421405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1133421405 is a deficient number, since it is larger than the sum of its proper divisors (680052867).

1133421405 is an equidigital number, since it uses as much as digits as its factorization.

1133421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75561435.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1133421405 is about 33666.3244949608. The cubic root of 1133421405 is about 1042.6306077701.

Adding to 1133421405 its reverse (5041243311), we get a palindrome (6174664716).

The spelling of 1133421405 in words is "one billion, one hundred thirty-three million, four hundred twenty-one thousand, four hundred five".