145047 has 8 divisors (see below), whose sum is σ = 221056. Its totient is φ = 82872.

The previous prime is 145043. The next prime is 145063. The reversal of 145047 is 740541.

145047 is nontrivially palindromic in base 6.

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

It is not a de Polignac number, because 145047 - 2² = 145043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6907 = 145047 / (1 + 4 + 5 + 0 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145047.

It is not an unprimeable number, because it can be changed into a prime (145043) 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, 3433 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (27632).

2¹⁴⁵⁰⁴⁷ is an apocalyptic number.

145047 is a deficient number, since it is larger than the sum of its proper divisors (76009).

145047 is an equidigital number, since it uses as much as digits as its factorization.

145047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 145047 is about 380.8503643165. The cubic root of 145047 is about 52.5415544021.

Adding to 145047 its reverse (740541), we get a palindrome (885588).

The spelling of 145047 in words is "one hundred forty-five thousand, forty-seven".