5146639 has 2 divisors, whose sum is σ = 5146640. Its totient is φ = 5146638.

The previous prime is 5146637. The next prime is 5146649. The reversal of 5146639 is 9366415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5146639 - 2¹ = 5146637 is a prime.

Together with 5146637, it forms a pair of twin primes.

It is equal to p₃₅₇₉₉₁ and since 5146639 and 357991 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5146633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573319 + 2573320.

It is an arithmetic number, because the mean of its divisors is an integer number (2573320).

Almost surely, 2^5146639 is an apocalyptic number.

5146639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5146639 is an equidigital number, since it uses as much as digits as its factorization.

5146639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 5146639 is about 2268.6205059463. The cubic root of 5146639 is about 172.6531748741.

The spelling of 5146639 in words is "five million, one hundred forty-six thousand, six hundred thirty-nine".