1134124781 has 2 divisors, whose sum is σ = 1134124782. Its totient is φ = 1134124780.

The previous prime is 1134124759. The next prime is 1134124799. The reversal of 1134124781 is 1874214311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1083002281 + 51122500 = 32909^2 + 7150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1134124781 - 2¹⁸ = 1133862637 is a prime.

It is a super-2 number, since 2×1134124781² = 2572478037756595922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1134124741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567062390 + 567062391.

It is an arithmetic number, because the mean of its divisors is an integer number (567062391).

Almost surely, 2^1134124781 is an apocalyptic number.

It is an amenable number.

1134124781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134124781 is an equidigital number, since it uses as much as digits as its factorization.

1134124781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 32.

The square root of 1134124781 is about 33676.7691591696. The cubic root of 1134124781 is about 1042.8462409238.

The spelling of 1134124781 in words is "one billion, one hundred thirty-four million, one hundred twenty-four thousand, seven hundred eighty-one".