145673207 has 4 divisors (see below), whose sum is σ = 149061000. Its totient is φ = 142285416.

The previous prime is 145673201. The next prime is 145673249. The reversal of 145673207 is 702376541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145673207 - 2²⁰ = 144624631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145673201) 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, 1693832 + ... + 1693917.

It is an arithmetic number, because the mean of its divisors is an integer number (37265250).

Almost surely, 2^145673207 is an apocalyptic number.

145673207 is a deficient number, since it is larger than the sum of its proper divisors (3387793).

145673207 is an equidigital number, since it uses as much as digits as its factorization.

145673207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387792.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 145673207 is about 12069.5156075130. The cubic root of 145673207 is about 526.1705786791.

The spelling of 145673207 in words is "one hundred forty-five million, six hundred seventy-three thousand, two hundred seven".