30926121 has 4 divisors (see below), whose sum is σ = 41234832. Its totient is φ = 20617412.

The previous prime is 30926113. The next prime is 30926131. The reversal of 30926121 is 12162903.

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 30926121 - 2³ = 30926113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30926091 and 30926100.

It is not an unprimeable number, because it can be changed into a prime (30926131) 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, 5154351 + ... + 5154356.

It is an arithmetic number, because the mean of its divisors is an integer number (10308708).

Almost surely, 2^30926121 is an apocalyptic number.

It is an amenable number.

30926121 is a deficient number, since it is larger than the sum of its proper divisors (10308711).

30926121 is a wasteful number, since it uses less digits than its factorization.

30926121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308710.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30926121 is about 5561.1258752163. The cubic root of 30926121 is about 313.8883161303. Note that the first 3 decimals are identical.

The spelling of 30926121 in words is "thirty million, nine hundred twenty-six thousand, one hundred twenty-one".