7141135261 has 4 divisors (see below), whose sum is σ = 7690453372. Its totient is φ = 6591817152.

The previous prime is 7141135249. The next prime is 7141135307. The reversal of 7141135261 is 1625311417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1625311417 = 20113 ⋅80809.

It can be written as a sum of positive squares in 2 ways, for example, as 3171379225 + 3969756036 = 56315^2 + 63006^2 .

It is a cyclic number.

It is not a de Polignac number, because 7141135261 - 2⁵ = 7141135229 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 (7141135361) 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, 274659036 + ... + 274659061.

It is an arithmetic number, because the mean of its divisors is an integer number (1922613343).

Almost surely, 2^7141135261 is an apocalyptic number.

It is an amenable number.

7141135261 is a deficient number, since it is larger than the sum of its proper divisors (549318111).

7141135261 is a wasteful number, since it uses less digits than its factorization.

7141135261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549318110.

The product of its digits is 5040, while the sum is 31.

The square root of 7141135261 is about 84505.2380684180. The cubic root of 7141135261 is about 1925.7020218842.

Adding to 7141135261 its reverse (1625311417), we get a palindrome (8766446678).

The spelling of 7141135261 in words is "seven billion, one hundred forty-one million, one hundred thirty-five thousand, two hundred sixty-one".