5314121921 has 4 divisors (see below), whose sum is σ = 5314319700. Its totient is φ = 5313924144.

The previous prime is 5314121909. The next prime is 5314121941. The reversal of 5314121921 is 1291214135.

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 4363263025 + 950858896 = 66055^2 + 30836^2 .

It is a cyclic number.

It is not a de Polignac number, because 5314121921 - 2¹⁸ = 5313859777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5314121941) 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, 50786 + ... + 114923.

It is an arithmetic number, because the mean of its divisors is an integer number (1328579925).

Almost surely, 2^5314121921 is an apocalyptic number.

It is an amenable number.

5314121921 is a deficient number, since it is larger than the sum of its proper divisors (197779).

5314121921 is a wasteful number, since it uses less digits than its factorization.

5314121921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197778.

The product of its digits is 2160, while the sum is 29.

The square root of 5314121921 is about 72898.0241227429. The cubic root of 5314121921 is about 1745.0605662019.

The spelling of 5314121921 in words is "five billion, three hundred fourteen million, one hundred twenty-one thousand, nine hundred twenty-one".