2661513135 has 16 divisors (see below), whose sum is σ = 4405263840. Its totient is φ = 1370526080.

The previous prime is 2661513131. The next prime is 2661513139. The reversal of 2661513135 is 5313151662.

It is an interprime number because it is at equal distance from previous prime (2661513131) and next prime (2661513139).

It is not a de Polignac number, because 2661513135 - 2² = 2661513131 is a prime.

It is a super-5 number, since 5×2661513135⁵ (a number of 48 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a junction number, because it is equal to n+sod(n) for n = 2661513096 and 2661513105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661513131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058776 + ... + 3059645.

It is an arithmetic number, because the mean of its divisors is an integer number (275328990).

Almost surely, 2^2661513135 is an apocalyptic number.

2661513135 is a deficient number, since it is larger than the sum of its proper divisors (1743750705).

2661513135 is a wasteful number, since it uses less digits than its factorization.

2661513135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118458.

The product of its digits is 16200, while the sum is 33.

The square root of 2661513135 is about 51589.8549619981. The cubic root of 2661513135 is about 1385.8286577959.

Adding to 2661513135 its reverse (5313151662), we get a palindrome (7974664797).

The spelling of 2661513135 in words is "two billion, six hundred sixty-one million, five hundred thirteen thousand, one hundred thirty-five".