145057 has 4 divisors (see below), whose sum is σ = 158256. Its totient is φ = 131860.

The previous prime is 145043. The next prime is 145063. The reversal of 145057 is 750541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145057 - 2¹⁵ = 112289 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145007) 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, 6583 + ... + 6604.

It is an arithmetic number, because the mean of its divisors is an integer number (39564).

2¹⁴⁵⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

145057 is a deficient number, since it is larger than the sum of its proper divisors (13199).

145057 is a wasteful number, since it uses less digits than its factorization.

145057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13198.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 145057 is about 380.8634926059. The cubic root of 145057 is about 52.5427618348.

Adding to 145057 its reverse (750541), we get a palindrome (895598).

The spelling of 145057 in words is "one hundred forty-five thousand, fifty-seven".