4153445 has 8 divisors (see below), whose sum is σ = 5030520. Its totient is φ = 3291840.

The previous prime is 4153433. The next prime is 4153447. The reversal of 4153445 is 5443514.

It is a Cunningham number, because it is equal to 2038²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1493284 + 2660161 = 1222^2 + 1631^2 .

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

It is not a de Polignac number, because 4153445 - 2²⁰ = 3104869 is a prime.

It is a super-2 number, since 2×4153445² = 34502210736050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4153447) 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, 3266 + ... + 4355.

It is an arithmetic number, because the mean of its divisors is an integer number (628815).

Almost surely, 2^4153445 is an apocalyptic number.

It is an amenable number.

4153445 is a deficient number, since it is larger than the sum of its proper divisors (877075).

4153445 is a wasteful number, since it uses less digits than its factorization.

4153445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735.

The product of its digits is 4800, while the sum is 26.

The square root of 4153445 is about 2038.0002453386. Note that the first 3 decimals coincide. The cubic root of 4153445 is about 160.7445120338.

Adding to 4153445 its reverse (5443514), we get a palindrome (9596959).

The spelling of 4153445 in words is "four million, one hundred fifty-three thousand, four hundred forty-five".