145171827 has 12 divisors (see below), whose sum is σ = 214569784. Its totient is φ = 94530240.

The previous prime is 145171813. The next prime is 145171867. The reversal of 145171827 is 728171541.

145171827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145171827 - 2¹¹ = 145169779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145171791 and 145171800.

It is not an unprimeable number, because it can be changed into a prime (145171867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187174 + ... + 187947.

Almost surely, 2^145171827 is an apocalyptic number.

145171827 is a deficient number, since it is larger than the sum of its proper divisors (69397957).

145171827 is a wasteful number, since it uses less digits than its factorization.

145171827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375170 (or 375167 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 145171827 is about 12048.7271941894. The cubic root of 145171827 is about 525.5662244686.

The spelling of 145171827 in words is "one hundred forty-five million, one hundred seventy-one thousand, eight hundred twenty-seven".