361648121 has 4 divisors (see below), whose sum is σ = 364495872. Its totient is φ = 358800372.

The previous prime is 361648099. The next prime is 361648129. The reversal of 361648121 is 121846163.

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.

It is a cyclic number.

It is not a de Polignac number, because 361648121 - 2⁶ = 361648057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361648129) 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, 1423685 + ... + 1423938.

It is an arithmetic number, because the mean of its divisors is an integer number (91123968).

Almost surely, 2^361648121 is an apocalyptic number.

It is an amenable number.

361648121 is a deficient number, since it is larger than the sum of its proper divisors (2847751).

361648121 is a wasteful number, since it uses less digits than its factorization.

361648121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847750.

The product of its digits is 6912, while the sum is 32.

The square root of 361648121 is about 19017.0481673681. The cubic root of 361648121 is about 712.4625992885.

The spelling of 361648121 in words is "three hundred sixty-one million, six hundred forty-eight thousand, one hundred twenty-one".