366610121 has 4 divisors (see below), whose sum is σ = 367026192. Its totient is φ = 366194052.

The previous prime is 366610109. The next prime is 366610157. The reversal of 366610121 is 121016663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121016663 = 43 ⋅2814341.

It is a cyclic number.

It is not a de Polignac number, because 366610121 - 2¹⁴ = 366593737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366610421) 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, 206711 + ... + 208476.

It is an arithmetic number, because the mean of its divisors is an integer number (91756548).

Almost surely, 2^366610121 is an apocalyptic number.

It is an amenable number.

366610121 is a deficient number, since it is larger than the sum of its proper divisors (416071).

366610121 is an equidigital number, since it uses as much as digits as its factorization.

366610121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416070.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 366610121 is about 19147.0655976314. The cubic root of 366610121 is about 715.7062615679.

Adding to 366610121 its reverse (121016663), we get a palindrome (487626784).

The spelling of 366610121 in words is "three hundred sixty-six million, six hundred ten thousand, one hundred twenty-one".