145767 has 4 divisors (see below), whose sum is σ = 194360. Its totient is φ = 97176.

The previous prime is 145759. The next prime is 145771. The reversal of 145767 is 767541.

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: 767541 = 3 ⋅255847.

It is not a de Polignac number, because 145767 - 2³ = 145759 is a prime.

It is a D-number.

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 145767.

It is not an unprimeable number, because it can be changed into a prime (145757) 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, 24292 + ... + 24297.

It is an arithmetic number, because the mean of its divisors is an integer number (48590).

2¹⁴⁵⁷⁶⁷ is an apocalyptic number.

145767 is a deficient number, since it is larger than the sum of its proper divisors (48593).

145767 is an equidigital number, since it uses as much as digits as its factorization.

145767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48592.

The product of its digits is 5880, while the sum is 30.

The square root of 145767 is about 381.7944473143. The cubic root of 145767 is about 52.6283480999.

The spelling of 145767 in words is "one hundred forty-five thousand, seven hundred sixty-seven".