145441871 has 4 divisors (see below), whose sum is σ = 146854032. Its totient is φ = 144029712.

The previous prime is 145441853. The next prime is 145441889. The reversal of 145441871 is 178144541.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (145441853) and next prime (145441889).

It is a cyclic number.

It is not a de Polignac number, because 145441871 - 2¹⁰ = 145440847 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 (145441831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705926 + ... + 706131.

It is an arithmetic number, because the mean of its divisors is an integer number (36713508).

Almost surely, 2^145441871 is an apocalyptic number.

145441871 is a deficient number, since it is larger than the sum of its proper divisors (1412161).

145441871 is a wasteful number, since it uses less digits than its factorization.

145441871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412160.

The product of its digits is 17920, while the sum is 35.

The square root of 145441871 is about 12059.9283165365. The cubic root of 145441871 is about 525.8919031195.

The spelling of 145441871 in words is "one hundred forty-five million, four hundred forty-one thousand, eight hundred seventy-one".