76540161 has 8 divisors (see below), whose sum is σ = 104811904. Its totient is φ = 49647600.

The previous prime is 76540157. The next prime is 76540181. The reversal of 76540161 is 16104567.

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

It is not a de Polignac number, because 76540161 - 2² = 76540157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76540181) 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, 344665 + ... + 344886.

It is an arithmetic number, because the mean of its divisors is an integer number (13101488).

Almost surely, 2^76540161 is an apocalyptic number.

It is an amenable number.

76540161 is a deficient number, since it is larger than the sum of its proper divisors (28271743).

76540161 is a wasteful number, since it uses less digits than its factorization.

76540161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689591.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 76540161 is about 8748.7233925871. The cubic root of 76540161 is about 424.5835107849.

The spelling of 76540161 in words is "seventy-six million, five hundred forty thousand, one hundred sixty-one".