4356145 has 4 divisors (see below), whose sum is σ = 5227380. Its totient is φ = 3484912.

The previous prime is 4356133. The next prime is 4356167. The reversal of 4356145 is 5416534.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5416534 = 2 ⋅2708267.

It can be written as a sum of positive squares in 2 ways, for example, as 1520289 + 2835856 = 1233^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 4356145 - 2¹⁵ = 4323377 is a prime.

It is a super-2 number, since 2×4356145² = 37951998522050, which contains 22 as substring.

4356145 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435610 + ... + 435619.

It is an arithmetic number, because the mean of its divisors is an integer number (1306845).

Almost surely, 2^4356145 is an apocalyptic number.

It is an amenable number.

4356145 is a deficient number, since it is larger than the sum of its proper divisors (871235).

4356145 is an equidigital number, since it uses as much as digits as its factorization.

4356145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871234.

The product of its digits is 7200, while the sum is 28.

The square root of 4356145 is about 2087.1379925630. The cubic root of 4356145 is about 163.3180211477.

The spelling of 4356145 in words is "four million, three hundred fifty-six thousand, one hundred forty-five".