7135312061 has 4 divisors (see below), whose sum is σ = 7189780224. Its totient is φ = 7080843900.

The previous prime is 7135312043. The next prime is 7135312127. The reversal of 7135312061 is 1602135317.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7135312061 - 2¹⁴ = 7135295677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7155312061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27233885 + ... + 27234146.

It is an arithmetic number, because the mean of its divisors is an integer number (1797445056).

Almost surely, 2^7135312061 is an apocalyptic number.

It is an amenable number.

7135312061 is a deficient number, since it is larger than the sum of its proper divisors (54468163).

7135312061 is a wasteful number, since it uses less digits than its factorization.

7135312061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54468162.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 7135312061 is about 84470.7763726604. The cubic root of 7135312061 is about 1925.1784451209.

Adding to 7135312061 its reverse (1602135317), we get a palindrome (8737447378).

The spelling of 7135312061 in words is "seven billion, one hundred thirty-five million, three hundred twelve thousand, sixty-one".