145776805 has 8 divisors (see below), whose sum is σ = 175980672. Its totient is φ = 115922448.

The previous prime is 145776793. The next prime is 145776821. The reversal of 145776805 is 508677541.

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

It is a cyclic number.

It is not a de Polignac number, because 145776805 - 2⁵ = 145776773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86457 + ... + 88126.

It is an arithmetic number, because the mean of its divisors is an integer number (21997584).

Almost surely, 2^145776805 is an apocalyptic number.

It is an amenable number.

145776805 is a deficient number, since it is larger than the sum of its proper divisors (30203867).

145776805 is a wasteful number, since it uses less digits than its factorization.

145776805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174755.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 145776805 is about 12073.8065662822. The cubic root of 145776805 is about 526.2952808667.

The spelling of 145776805 in words is "one hundred forty-five million, seven hundred seventy-six thousand, eight hundred five".