145051 has 4 divisors (see below), whose sum is σ = 147112. Its totient is φ = 142992.

The previous prime is 145043. The next prime is 145063. The reversal of 145051 is 150541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150541 = 47 ⋅3203.

It is a cyclic number.

It is not a de Polignac number, because 145051 - 2³ = 145043 is a prime.

It is an Ulam number.

It is a Duffinian number.

145051 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (145021) 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, 921 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (36778).

2¹⁴⁵⁰⁵¹ is an apocalyptic number.

145051 is a deficient number, since it is larger than the sum of its proper divisors (2061).

145051 is an equidigital number, since it uses as much as digits as its factorization.

145051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 145051 is about 380.8556156866. The cubic root of 145051 is about 52.5420373818.

Adding to 145051 its reverse (150541), we get a palindrome (295592).

The spelling of 145051 in words is "one hundred forty-five thousand, fifty-one".