76180045 has 4 divisors (see below), whose sum is σ = 91416060. Its totient is φ = 60944032.

The previous prime is 76180021. The next prime is 76180057. The reversal of 76180045 is 54008167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54008167 = 17 ⋅3176951.

It can be written as a sum of positive squares in 2 ways, for example, as 17489124 + 58690921 = 4182^2 + 7661^2 .

It is a cyclic number.

It is not a de Polignac number, because 76180045 - 2²¹ = 74082893 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 76179989 and 76180016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7618000 + ... + 7618009.

It is an arithmetic number, because the mean of its divisors is an integer number (22854015).

Almost surely, 2^76180045 is an apocalyptic number.

It is an amenable number.

76180045 is a deficient number, since it is larger than the sum of its proper divisors (15236015).

76180045 is a wasteful number, since it uses less digits than its factorization.

76180045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15236014.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 76180045 is about 8728.1180674874. The cubic root of 76180045 is about 423.9165853618.

The spelling of 76180045 in words is "seventy-six million, one hundred eighty thousand, forty-five".