4135315561 has 4 divisors (see below), whose sum is σ = 4453416772. Its totient is φ = 3817214352.

The previous prime is 4135315559. The next prime is 4135315571. The reversal of 4135315561 is 1655135314.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1485639936 + 2649675625 = 38544^2 + 51475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4135315561 - 2¹ = 4135315559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4135315511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159050586 + ... + 159050611.

It is an arithmetic number, because the mean of its divisors is an integer number (1113354193).

Almost surely, 2^4135315561 is an apocalyptic number.

It is an amenable number.

4135315561 is a deficient number, since it is larger than the sum of its proper divisors (318101211).

4135315561 is a wasteful number, since it uses less digits than its factorization.

4135315561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318101210.

The product of its digits is 27000, while the sum is 34.

The square root of 4135315561 is about 64306.4192829923. The cubic root of 4135315561 is about 1605.1029214901.

The spelling of 4135315561 in words is "four billion, one hundred thirty-five million, three hundred fifteen thousand, five hundred sixty-one".