1134240421 has 2 divisors, whose sum is σ = 1134240422. Its totient is φ = 1134240420.

The previous prime is 1134240409. The next prime is 1134240449. The reversal of 1134240421 is 1240424311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122585025 + 11655396 = 33505^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 1134240421 - 2⁵ = 1134240389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1134240392 and 1134240401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1134240461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567120210 + 567120211.

It is an arithmetic number, because the mean of its divisors is an integer number (567120211).

Almost surely, 2^1134240421 is an apocalyptic number.

It is an amenable number.

1134240421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134240421 is an equidigital number, since it uses as much as digits as its factorization.

1134240421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1134240421 is about 33678.4860259484. The cubic root of 1134240421 is about 1042.8816840082.

Adding to 1134240421 its reverse (1240424311), we get a palindrome (2374664732).

The spelling of 1134240421 in words is "one billion, one hundred thirty-four million, two hundred forty thousand, four hundred twenty-one".