8920174121 has 4 divisors (see below), whose sum is σ = 8920875732. Its totient is φ = 8919472512.

The previous prime is 8920174103. The next prime is 8920174181. The reversal of 8920174121 is 1214710298.

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 4219152025 + 4701022096 = 64955^2 + 68564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8920174121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8920174181) 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, 331376 + ... + 357281.

It is an arithmetic number, because the mean of its divisors is an integer number (2230218933).

Almost surely, 2^8920174121 is an apocalyptic number.

It is an amenable number.

8920174121 is a deficient number, since it is larger than the sum of its proper divisors (701611).

8920174121 is a wasteful number, since it uses less digits than its factorization.

8920174121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701610.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 8920174121 is about 94446.6734247427. The cubic root of 8920174121 is about 2073.9157539444.

The spelling of 8920174121 in words is "eight billion, nine hundred twenty million, one hundred seventy-four thousand, one hundred twenty-one".