1134757721 has 2 divisors, whose sum is σ = 1134757722. Its totient is φ = 1134757720.

The previous prime is 1134757709. The next prime is 1134757747. The reversal of 1134757721 is 1277574311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783720025 + 351037696 = 27995^2 + 18736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1134757721 is a prime.

It is a super-2 number, since 2×1134757721² = 2575350170738227682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1134757751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567378860 + 567378861.

It is an arithmetic number, because the mean of its divisors is an integer number (567378861).

Almost surely, 2^1134757721 is an apocalyptic number.

It is an amenable number.

1134757721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1134757721 is an equidigital number, since it uses as much as digits as its factorization.

1134757721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41160, while the sum is 38.

The square root of 1134757721 is about 33686.1651275416. The cubic root of 1134757721 is about 1043.0402043979.

The spelling of 1134757721 in words is "one billion, one hundred thirty-four million, seven hundred fifty-seven thousand, seven hundred twenty-one".