77534141 has 4 divisors (see below), whose sum is σ = 77606172. Its totient is φ = 77462112.

The previous prime is 77534123. The next prime is 77534143. The reversal of 77534141 is 14143577.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14143577 = 7 ⋅2020511.

It can be written as a sum of positive squares in 2 ways, for example, as 53071225 + 24462916 = 7285^2 + 4946^2 .

It is a cyclic number.

It is not a de Polignac number, because 77534141 - 2⁶ = 77534077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77534098 and 77534107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77534143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34376 + ... + 36561.

It is an arithmetic number, because the mean of its divisors is an integer number (19401543).

Almost surely, 2^77534141 is an apocalyptic number.

It is an amenable number.

77534141 is a deficient number, since it is larger than the sum of its proper divisors (72031).

77534141 is a wasteful number, since it uses less digits than its factorization.

77534141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72030.

The product of its digits is 11760, while the sum is 32.

The square root of 77534141 is about 8805.3472958197. The cubic root of 77534141 is about 426.4135466300.

The spelling of 77534141 in words is "seventy-seven million, five hundred thirty-four thousand, one hundred forty-one".