145175928771 has 16 divisors (see below), whose sum is σ = 193956366240. Its totient is φ = 96589920000.

The previous prime is 145175928763. The next prime is 145175928791. The reversal of 145175928771 is 177829571541.

It is a happy number.

It is not a de Polignac number, because 145175928771 - 2³ = 145175928763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145175928731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3032521 + ... + 3080021.

It is an arithmetic number, because the mean of its divisors is an integer number (12122272890).

Almost surely, 2^145175928771 is an apocalyptic number.

145175928771 is a deficient number, since it is larger than the sum of its proper divisors (48780437469).

145175928771 is a wasteful number, since it uses less digits than its factorization.

145175928771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49526.

The product of its digits is 4939200, while the sum is 57.

The spelling of 145175928771 in words is "one hundred forty-five billion, one hundred seventy-five million, nine hundred twenty-eight thousand, seven hundred seventy-one".