87751141 has 4 divisors (see below), whose sum is σ = 91566432. Its totient is φ = 83935852.

The previous prime is 87751133. The next prime is 87751151. The reversal of 87751141 is 14115778.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14115778 = 2 ⋅7057889.

It is a cyclic number.

It is not a de Polignac number, because 87751141 - 2³ = 87751133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87751097 and 87751106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87751121) 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, 1907611 + ... + 1907656.

It is an arithmetic number, because the mean of its divisors is an integer number (22891608).

Almost surely, 2^87751141 is an apocalyptic number.

It is an amenable number.

87751141 is a deficient number, since it is larger than the sum of its proper divisors (3815291).

87751141 is a wasteful number, since it uses less digits than its factorization.

87751141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815290.

The product of its digits is 7840, while the sum is 34.

The square root of 87751141 is about 9367.5578994741. The cubic root of 87751141 is about 444.3763362972.

The spelling of 87751141 in words is "eighty-seven million, seven hundred fifty-one thousand, one hundred forty-one".