5109145 has 8 divisors (see below), whose sum is σ = 6296904. Its totient is φ = 3976704.

The previous prime is 5109121. The next prime is 5109149. The reversal of 5109145 is 5419015.

It can be written as a sum of positive squares in 4 ways, for example, as 145161 + 4963984 = 381^2 + 2228^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5109145 - 2⁵ = 5109113 is a prime.

It is a super-2 number, since 2×5109145² = 52206725262050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5109149) 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, 13624 + ... + 13993.

It is an arithmetic number, because the mean of its divisors is an integer number (787113).

Almost surely, 2^5109145 is an apocalyptic number.

It is an amenable number.

5109145 is a deficient number, since it is larger than the sum of its proper divisors (1187759).

5109145 is a wasteful number, since it uses less digits than its factorization.

5109145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27659.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5109145 is about 2260.3417883143. The cubic root of 5109145 is about 172.2328849143.

The spelling of 5109145 in words is "five million, one hundred nine thousand, one hundred forty-five".