135844757 has 2 divisors, whose sum is σ = 135844758. Its totient is φ = 135844756.

The previous prime is 135844747. The next prime is 135844769. The reversal of 135844757 is 757448531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68046001 + 67798756 = 8249^2 + 8234^2 .

It is a cyclic number.

It is not a de Polignac number, because 135844757 - 2⁴ = 135844741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135844747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67922378 + 67922379.

It is an arithmetic number, because the mean of its divisors is an integer number (67922379).

Almost surely, 2^135844757 is an apocalyptic number.

It is an amenable number.

135844757 is a deficient number, since it is larger than the sum of its proper divisors (1).

135844757 is an equidigital number, since it uses as much as digits as its factorization.

135844757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 44.

The square root of 135844757 is about 11655.2459004519. The cubic root of 135844757 is about 514.0605703626.

The spelling of 135844757 in words is "one hundred thirty-five million, eight hundred forty-four thousand, seven hundred fifty-seven".