5272145 has 4 divisors (see below), whose sum is σ = 6326580. Its totient is φ = 4217712.

The previous prime is 5272123. The next prime is 5272147. The reversal of 5272145 is 5412725.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1948816 + 3323329 = 1396^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 5272145 - 2⁶ = 5272081 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5272147) 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, 527210 + ... + 527219.

It is an arithmetic number, because the mean of its divisors is an integer number (1581645).

Almost surely, 2^5272145 is an apocalyptic number.

It is an amenable number.

5272145 is a deficient number, since it is larger than the sum of its proper divisors (1054435).

5272145 is a wasteful number, since it uses less digits than its factorization.

5272145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054434.

The product of its digits is 2800, while the sum is 26.

The square root of 5272145 is about 2296.1151974585. The cubic root of 5272145 is about 174.0453596456.

The spelling of 5272145 in words is "five million, two hundred seventy-two thousand, one hundred forty-five".