4345445121 has 8 divisors (see below), whose sum is σ = 5847082560. Its totient is φ = 2870385552.

The previous prime is 4345445077. The next prime is 4345445161. The reversal of 4345445121 is 1215445434.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4345445121 - 2¹⁰ = 4345444097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4345445161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6644085 + ... + 6644738.

It is an arithmetic number, because the mean of its divisors is an integer number (730885320).

Almost surely, 2^4345445121 is an apocalyptic number.

It is an amenable number.

4345445121 is a deficient number, since it is larger than the sum of its proper divisors (1501637439).

4345445121 is a wasteful number, since it uses less digits than its factorization.

4345445121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13288935.

The product of its digits is 38400, while the sum is 33.

The square root of 4345445121 is about 65919.9902988464. The cubic root of 4345445121 is about 1631.8419366302.

The spelling of 4345445121 in words is "four billion, three hundred forty-five million, four hundred forty-five thousand, one hundred twenty-one".