634089121 has 4 divisors (see below), whose sum is σ = 634221700. Its totient is φ = 633956544.

The previous prime is 634089119. The next prime is 634089151. The reversal of 634089121 is 121980436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65028096 + 569061025 = 8064^2 + 23855^2 .

It is a cyclic number.

It is not a de Polignac number, because 634089121 - 2¹ = 634089119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634089101) 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, 58836 + ... + 68773.

It is an arithmetic number, because the mean of its divisors is an integer number (158555425).

Almost surely, 2^634089121 is an apocalyptic number.

It is an amenable number.

634089121 is a deficient number, since it is larger than the sum of its proper divisors (132579).

634089121 is a wasteful number, since it uses less digits than its factorization.

634089121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132578.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 634089121 is about 25181.1262853749. The cubic root of 634089121 is about 859.1126239920.

The spelling of 634089121 in words is "six hundred thirty-four million, eighty-nine thousand, one hundred twenty-one".