608815121 has 4 divisors (see below), whose sum is σ = 609237312. Its totient is φ = 608392932.

The previous prime is 608815117. The next prime is 608815133. The reversal of 608815121 is 121518806.

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 608815121 - 2² = 608815117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608815171) 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, 208925 + ... + 211818.

It is an arithmetic number, because the mean of its divisors is an integer number (152309328).

Almost surely, 2^608815121 is an apocalyptic number.

It is an amenable number.

608815121 is a deficient number, since it is larger than the sum of its proper divisors (422191).

608815121 is a wasteful number, since it uses less digits than its factorization.

608815121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422190.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 608815121 is about 24674.1792366028. The cubic root of 608815121 is about 847.5431342781.

The spelling of 608815121 in words is "six hundred eight million, eight hundred fifteen thousand, one hundred twenty-one".