633162121 has 4 divisors (see below), whose sum is σ = 639079632. Its totient is φ = 627244612.

The previous prime is 633162119. The next prime is 633162151. The reversal of 633162121 is 121261336.

633162121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 633162121 - 2¹ = 633162119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (633162151) 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, 2958595 + ... + 2958808.

It is an arithmetic number, because the mean of its divisors is an integer number (159769908).

Almost surely, 2^633162121 is an apocalyptic number.

It is an amenable number.

633162121 is a deficient number, since it is larger than the sum of its proper divisors (5917511).

633162121 is a wasteful number, since it uses less digits than its factorization.

633162121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917510.

The product of its digits is 1296, while the sum is 25.

The square root of 633162121 is about 25162.7129101772. The cubic root of 633162121 is about 858.6937628853.

The spelling of 633162121 in words is "six hundred thirty-three million, one hundred sixty-two thousand, one hundred twenty-one".