145582271 has 8 divisors (see below), whose sum is σ = 155169504. Its totient is φ = 136108800.

The previous prime is 145582243. The next prime is 145582277. The reversal of 145582271 is 172285541.

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

It is not a de Polignac number, because 145582271 - 2⁶ = 145582207 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 (145582277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25790 + ... + 30923.

It is an arithmetic number, because the mean of its divisors is an integer number (19396188).

Almost surely, 2^145582271 is an apocalyptic number.

145582271 is a deficient number, since it is larger than the sum of its proper divisors (9587233).

145582271 is a wasteful number, since it uses less digits than its factorization.

145582271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56881.

The product of its digits is 22400, while the sum is 35.

The square root of 145582271 is about 12065.7478425500. The cubic root of 145582271 is about 526.0610691624.

The spelling of 145582271 in words is "one hundred forty-five million, five hundred eighty-two thousand, two hundred seventy-one".