1135005421 has 4 divisors (see below), whose sum is σ = 1238187744. Its totient is φ = 1031823100.

The previous prime is 1135005373. The next prime is 1135005433. The reversal of 1135005421 is 1245005311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1135005421 - 2⁷ = 1135005293 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1135005392 and 1135005401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135005461) 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, 51591145 + ... + 51591166.

It is an arithmetic number, because the mean of its divisors is an integer number (309546936).

Almost surely, 2^1135005421 is an apocalyptic number.

1135005421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1135005421 is a deficient number, since it is larger than the sum of its proper divisors (103182323).

1135005421 is a wasteful number, since it uses less digits than its factorization.

1135005421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103182322.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1135005421 is about 33689.8415104613. The cubic root of 1135005421 is about 1043.1160920397.

The spelling of 1135005421 in words is "one billion, one hundred thirty-five million, five thousand, four hundred twenty-one".