345625 has 20 divisors (see below), whose sum is σ = 499840. Its totient is φ = 234000.

The previous prime is 345607. The next prime is 345637. The reversal of 345625 is 526543.

It is not a de Polignac number, because 345625 - 2¹⁵ = 312857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 3⁷ + 4⁹ + 6² + 5⁵ + 2³ + 5⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 345625.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4336 + ... + 4414.

It is an arithmetic number, because the mean of its divisors is an integer number (24992).

2³⁴⁵⁶²⁵ is an apocalyptic number.

345625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

345625 is a deficient number, since it is larger than the sum of its proper divisors (154215).

345625 is an frugal number, since it uses more digits than its factorization.

345625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 91 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 345625 is about 587.8988008152. The cubic root of 345625 is about 70.1781178162.

It can be divided in two parts, 3456 and 25, that added together give a square (3481 = 59²).

The spelling of 345625 in words is "three hundred forty-five thousand, six hundred twenty-five".