145847671 has 8 divisors (see below), whose sum is σ = 147471984. Its totient is φ = 144231360.

The previous prime is 145847659. The next prime is 145847687. The reversal of 145847671 is 176748541.

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

It is a cyclic number.

It is not a de Polignac number, because 145847671 - 2²⁵ = 112293239 is a prime.

It is a super-2 number, since 2×145847671² = 42543086272248482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145847621) 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, 39225 + ... + 42781.

It is an arithmetic number, because the mean of its divisors is an integer number (18433998).

Almost surely, 2^145847671 is an apocalyptic number.

145847671 is a deficient number, since it is larger than the sum of its proper divisors (1624313).

145847671 is a wasteful number, since it uses less digits than its factorization.

145847671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001.

The product of its digits is 188160, while the sum is 43.

The square root of 145847671 is about 12076.7409096991. The cubic root of 145847671 is about 526.3805491172.

The spelling of 145847671 in words is "one hundred forty-five million, eight hundred forty-seven thousand, six hundred seventy-one".