5457239 has 2 divisors, whose sum is σ = 5457240. Its totient is φ = 5457238.

The previous prime is 5457229. The next prime is 5457253. The reversal of 5457239 is 9327545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5457239 - 2¹² = 5453143 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 5457199 and 5457208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5457229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728619 + 2728620.

It is an arithmetic number, because the mean of its divisors is an integer number (2728620).

Almost surely, 2^5457239 is an apocalyptic number.

5457239 is a deficient number, since it is larger than the sum of its proper divisors (1).

5457239 is an equidigital number, since it uses as much as digits as its factorization.

5457239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 5457239 is about 2336.0734149423. The cubic root of 5457239 is about 176.0587678231.

The spelling of 5457239 in words is "five million, four hundred fifty-seven thousand, two hundred thirty-nine".