145717187995 has 8 divisors (see below), whose sum is σ = 174863228400. Its totient is φ = 116572015200.

The previous prime is 145717187969. The next prime is 145717188007. The reversal of 145717187995 is 599781717541.

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

It is not a de Polignac number, because 145717187995 - 2³¹ = 143569704347 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240156 + ... + 590854.

It is an arithmetic number, because the mean of its divisors is an integer number (21857903550).

Almost surely, 2^145717187995 is an apocalyptic number.

145717187995 is a deficient number, since it is larger than the sum of its proper divisors (29146040405).

145717187995 is an equidigital number, since it uses as much as digits as its factorization.

145717187995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433805.

The product of its digits is 22226400, while the sum is 64.

The spelling of 145717187995 in words is "one hundred forty-five billion, seven hundred seventeen million, one hundred eighty-seven thousand, nine hundred ninety-five".