7028146121 has 8 divisors (see below), whose sum is σ = 7276399104. Its totient is φ = 6781239360.

The previous prime is 7028146109. The next prime is 7028146127. The reversal of 7028146121 is 1216418207.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7028146121 - 2⁶ = 7028146057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7028146127) 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, 325925 + ... + 346818.

It is an arithmetic number, because the mean of its divisors is an integer number (909549888).

Almost surely, 2^7028146121 is an apocalyptic number.

It is an amenable number.

7028146121 is a deficient number, since it is larger than the sum of its proper divisors (248252983).

7028146121 is a wasteful number, since it uses less digits than its factorization.

7028146121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673111.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 7028146121 is about 83834.0391547491. The cubic root of 7028146121 is about 1915.4916394332.

The spelling of 7028146121 in words is "seven billion, twenty-eight million, one hundred forty-six thousand, one hundred twenty-one".