145877871 has 8 divisors (see below), whose sum is σ = 197168560. Its totient is φ = 95919552.

The previous prime is 145877869. The next prime is 145877881. The reversal of 145877871 is 178778541.

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

It is not a de Polignac number, because 145877871 - 2¹ = 145877869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145877871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145877881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332836 + ... + 333273.

It is an arithmetic number, because the mean of its divisors is an integer number (24646070).

Almost surely, 2^145877871 is an apocalyptic number.

145877871 is a deficient number, since it is larger than the sum of its proper divisors (51290689).

145877871 is an equidigital number, since it uses as much as digits as its factorization.

145877871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666185.

The product of its digits is 439040, while the sum is 48.

The square root of 145877871 is about 12077.9911823117. The cubic root of 145877871 is about 526.4168783352.

The spelling of 145877871 in words is "one hundred forty-five million, eight hundred seventy-seven thousand, eight hundred seventy-one".