145716871 has 4 divisors (see below), whose sum is σ = 153386200. Its totient is φ = 138047544.

The previous prime is 145716869. The next prime is 145716889. The reversal of 145716871 is 178617541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178617541 = 11243 ⋅15887.

It is a cyclic number.

It is not a de Polignac number, because 145716871 - 2¹ = 145716869 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 (145711871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3834636 + ... + 3834673.

It is an arithmetic number, because the mean of its divisors is an integer number (38346550).

Almost surely, 2^145716871 is an apocalyptic number.

145716871 is a deficient number, since it is larger than the sum of its proper divisors (7669329).

145716871 is an equidigital number, since it uses as much as digits as its factorization.

145716871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669328.

The product of its digits is 47040, while the sum is 40.

The square root of 145716871 is about 12071.3243266843. The cubic root of 145716871 is about 526.2231447790.

The spelling of 145716871 in words is "one hundred forty-five million, seven hundred sixteen thousand, eight hundred seventy-one".