5146661 has 4 divisors (see below), whose sum is σ = 5542572. Its totient is φ = 4750752.

The previous prime is 5146649. The next prime is 5146667. The reversal of 5146661 is 1666415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1666415 = 5 ⋅333283.

It can be written as a sum of positive squares in 2 ways, for example, as 3441025 + 1705636 = 1855^2 + 1306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5146661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5146667) 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, 197936 + ... + 197961.

It is an arithmetic number, because the mean of its divisors is an integer number (1385643).

Almost surely, 2^5146661 is an apocalyptic number.

It is an amenable number.

5146661 is a deficient number, since it is larger than the sum of its proper divisors (395911).

5146661 is a wasteful number, since it uses less digits than its factorization.

5146661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395910.

The product of its digits is 4320, while the sum is 29.

The square root of 5146661 is about 2268.6253547027. The cubic root of 5146661 is about 172.6534208835.

The spelling of 5146661 in words is "five million, one hundred forty-six thousand, six hundred sixty-one".