1134781 has 2 divisors, whose sum is σ = 1134782. Its totient is φ = 1134780.

The previous prime is 1134769. The next prime is 1134787. The reversal of 1134781 is 1874311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737881 + 396900 = 859^2 + 630^2 .

It is an emirp because it is prime and its reverse (1874311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1134781 is a prime.

It is a super-2 number, since 2×1134781² = 2575455835922, which contains 22 as substring.

It is equal to p₈₈₂₃₄ and since 1134781 and 88234 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1134787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567390 + 567391.

It is an arithmetic number, because the mean of its divisors is an integer number (567391).

2^1134781 is an apocalyptic number.

It is an amenable number.

1134781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134781 is an equidigital number, since it uses as much as digits as its factorization.

1134781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 25.

The square root of 1134781 is about 1065.2610008819. The cubic root of 1134781 is about 104.3047336836.

The spelling of 1134781 in words is "one million, one hundred thirty-four thousand, seven hundred eighty-one".