145803271 has 16 divisors (see below), whose sum is σ = 161546400. Its totient is φ = 130966528.

The previous prime is 145803253. The next prime is 145803299. The reversal of 145803271 is 172308541.

It is a cyclic number.

It is not a de Polignac number, because 145803271 - 2⁷ = 145803143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145803211) 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, 42216 + ... + 45538.

It is an arithmetic number, because the mean of its divisors is an integer number (10096650).

Almost surely, 2^145803271 is an apocalyptic number.

145803271 is a deficient number, since it is larger than the sum of its proper divisors (15743129).

145803271 is a wasteful number, since it uses less digits than its factorization.

145803271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458.

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

The square root of 145803271 is about 12074.9025254865. The cubic root of 145803271 is about 526.3271288415.

The spelling of 145803271 in words is "one hundred forty-five million, eight hundred three thousand, two hundred seventy-one".