135941761 has 6 divisors (see below), whose sum is σ = 136455410. Its totient is φ = 135429936.

The previous prime is 135941711. The next prime is 135941779. The reversal of 135941761 is 167149531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87778161 + 48163600 = 9369^2 + 6940^2 .

It is not a de Polignac number, because 135941761 - 2²¹ = 133844609 is a prime.

It is a super-2 number, since 2×135941761² = 36960324767562242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135941761.

It is not an unprimeable number, because it can be changed into a prime (135941711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119845 + ... + 120973.

Almost surely, 2^135941761 is an apocalyptic number.

It is an amenable number.

135941761 is a deficient number, since it is larger than the sum of its proper divisors (513649).

135941761 is an frugal number, since it uses more digits than its factorization.

135941761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1476 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 135941761 is about 11659.4065457895. The cubic root of 135941761 is about 514.1829013428.

The spelling of 135941761 in words is "one hundred thirty-five million, nine hundred forty-one thousand, seven hundred sixty-one".