145686207 has 8 divisors (see below), whose sum is σ = 197147776. Its totient is φ = 95674392.

The previous prime is 145686199. The next prime is 145686217. The reversal of 145686207 is 702686541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145686207 - 2³ = 145686199 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 (145686217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362203 + ... + 362604.

It is an arithmetic number, because the mean of its divisors is an integer number (24643472).

Almost surely, 2^145686207 is an apocalyptic number.

145686207 is a deficient number, since it is larger than the sum of its proper divisors (51461569).

145686207 is an equidigital number, since it uses as much as digits as its factorization.

145686207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724877.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 145686207 is about 12070.0541423806. The cubic root of 145686207 is about 526.1862301824.

The spelling of 145686207 in words is "one hundred forty-five million, six hundred eighty-six thousand, two hundred seven".