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5109661 is a prime number
BaseRepresentation
bin10011011111011110011101
3100121121010201
4103133132131
52302002121
6301303501
761300654
oct23373635
910547121
105109661
11297aa67
121864b91
13109b98b
1497019b
156ade91
hex4df79d

5109661 has 2 divisors, whose sum is σ = 5109662. Its totient is φ = 5109660.

The previous prime is 5109631. The next prime is 5109683. The reversal of 5109661 is 1669015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 1705636 = 1845^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5109661 - 29 = 5109149 is a prime.

It is a super-2 number, since 2×51096612 = 52217271069842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5109631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554830 + 2554831.

It is an arithmetic number, because the mean of its divisors is an integer number (2554831).

Almost surely, 25109661 is an apocalyptic number.

It is an amenable number.

5109661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5109661 is an equidigital number, since it uses as much as digits as its factorization.

5109661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 5109661 is about 2260.4559274624. The cubic root of 5109661 is about 172.2386829605.

The spelling of 5109661 in words is "five million, one hundred nine thousand, six hundred sixty-one".