3661123 has 2 divisors, whose sum is σ = 3661124. Its totient is φ = 3661122.

The previous prime is 3661111. The next prime is 3661139. The reversal of 3661123 is 3211663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3661123 - 2¹³ = 3652931 is a prime.

It is a super-2 number, since 2×3661123² = 26807643242258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3661094 and 3661103.

It is not a weakly prime, because it can be changed into another prime (3601123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830561 + 1830562.

It is an arithmetic number, because the mean of its divisors is an integer number (1830562).

Almost surely, 2^3661123 is an apocalyptic number.

3661123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661123 is an equidigital number, since it uses as much as digits as its factorization.

3661123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 3661123 is about 1913.4061252123. The cubic root of 3661123 is about 154.1244145554.

Adding to 3661123 its reverse (3211663), we get a palindrome (6872786).

The spelling of 3661123 in words is "three million, six hundred sixty-one thousand, one hundred twenty-three".