618056121 has 4 divisors (see below), whose sum is σ = 824074832. Its totient is φ = 412037412.

The previous prime is 618056119. The next prime is 618056129. The reversal of 618056121 is 121650816.

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 not a de Polignac number, because 618056121 - 2¹ = 618056119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618056129) 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, 103009351 + ... + 103009356.

It is an arithmetic number, because the mean of its divisors is an integer number (206018708).

Almost surely, 2^618056121 is an apocalyptic number.

It is an amenable number.

618056121 is a deficient number, since it is larger than the sum of its proper divisors (206018711).

618056121 is a wasteful number, since it uses less digits than its factorization.

618056121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206018710.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 618056121 is about 24860.7345225357. The cubic root of 618056121 is about 851.8098098144.

The spelling of 618056121 in words is "six hundred eighteen million, fifty-six thousand, one hundred twenty-one".