5190489121 has 4 divisors (see below), whose sum is σ = 5288422932. Its totient is φ = 5092555312.

The previous prime is 5190489119. The next prime is 5190489131. The reversal of 5190489121 is 1219840915.

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 1948781025 + 3241708096 = 44145^2 + 56936^2 .

It is a cyclic number.

It is not a de Polignac number, because 5190489121 - 2¹ = 5190489119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5190489131) 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, 48966826 + ... + 48966931.

It is an arithmetic number, because the mean of its divisors is an integer number (1322105733).

Almost surely, 2^5190489121 is an apocalyptic number.

It is an amenable number.

5190489121 is a deficient number, since it is larger than the sum of its proper divisors (97933811).

5190489121 is an equidigital number, since it uses as much as digits as its factorization.

5190489121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97933810.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 5190489121 is about 72045.0492469816. The cubic root of 5190489121 is about 1731.4213230759.

The spelling of 5190489121 in words is "five billion, one hundred ninety million, four hundred eighty-nine thousand, one hundred twenty-one".