7135142561 has 8 divisors (see below), whose sum is σ = 7512697920. Its totient is φ = 6757789392.

The previous prime is 7135142533. The next prime is 7135142563. The reversal of 7135142561 is 1652415317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7135142561 - 2²² = 7130948257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7135142563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24791 + ... + 122003.

It is an arithmetic number, because the mean of its divisors is an integer number (939087240).

Almost surely, 2^7135142561 is an apocalyptic number.

It is an amenable number.

7135142561 is a deficient number, since it is larger than the sum of its proper divisors (377555359).

7135142561 is a wasteful number, since it uses less digits than its factorization.

7135142561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101095.

The product of its digits is 25200, while the sum is 35.

The square root of 7135142561 is about 84469.7730611371. The cubic root of 7135142561 is about 1925.1632007360.

Adding to 7135142561 its reverse (1652415317), we get a palindrome (8787557878).

The spelling of 7135142561 in words is "seven billion, one hundred thirty-five million, one hundred forty-two thousand, five hundred sixty-one".