5212139 has 2 divisors, whose sum is σ = 5212140. Its totient is φ = 5212138.

The previous prime is 5212133. The next prime is 5212157. The reversal of 5212139 is 9312125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5212139 - 2¹² = 5208043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5212133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606069 + 2606070.

It is an arithmetic number, because the mean of its divisors is an integer number (2606070).

Almost surely, 2^5212139 is an apocalyptic number.

5212139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5212139 is an equidigital number, since it uses as much as digits as its factorization.

5212139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 5212139 is about 2283.0109504775. The cubic root of 5212139 is about 173.3825275390.

The spelling of 5212139 in words is "five million, two hundred twelve thousand, one hundred thirty-nine".