135047641 has 3 divisors (see below), whose sum is σ = 135059263. Its totient is φ = 135036020.

The previous prime is 135047617. The next prime is 135047659. The reversal of 135047641 is 146740531.

The square root of 135047641 is 11621.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 10055241 + 124992400 = 3171^2 + 11180^2 .

It is not a de Polignac number, because 135047641 - 2¹⁷ = 134916569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135047681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5811 + ... + 17431.

Almost surely, 2^135047641 is an apocalyptic number.

135047641 is the 11621-st square number.

135047641 is the 5811-st centered octagonal number.

It is an amenable number.

135047641 is a deficient number, since it is larger than the sum of its proper divisors (11622).

135047641 is an frugal number, since it uses more digits than its factorization.

135047641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23242 (or 11621 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The cubic root of 135047641 is about 513.0531213238.

The spelling of 135047641 in words is "one hundred thirty-five million, forty-seven thousand, six hundred forty-one".