145307 has 2 divisors, whose sum is σ = 145308. Its totient is φ = 145306.

The previous prime is 145303. The next prime is 145349. The reversal of 145307 is 703541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145307 - 2² = 145303 is a prime.

It is a super-2 number, since 2×145307² = 42228248498, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145307.

It is not a weakly prime, because it can be changed into another prime (145303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72653 + 72654.

It is an arithmetic number, because the mean of its divisors is an integer number (72654).

2¹⁴⁵³⁰⁷ is an apocalyptic number.

145307 is a deficient number, since it is larger than the sum of its proper divisors (1).

145307 is an equidigital number, since it uses as much as digits as its factorization.

145307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 145307 is about 381.1915528970. The cubic root of 145307 is about 52.5729296341.

Adding to 145307 its reverse (703541), we get a palindrome (848848).

The spelling of 145307 in words is "one hundred forty-five thousand, three hundred seven".