48138247 has 2 divisors, whose sum is σ = 48138248. Its totient is φ = 48138246.

The previous prime is 48138239. The next prime is 48138263. The reversal of 48138247 is 74283184.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 48138247 - 2³ = 48138239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48138047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24069123 + 24069124.

It is an arithmetic number, because the mean of its divisors is an integer number (24069124).

Almost surely, 2^48138247 is an apocalyptic number.

48138247 is a deficient number, since it is larger than the sum of its proper divisors (1).

48138247 is an equidigital number, since it uses as much as digits as its factorization.

48138247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 37.

The square root of 48138247 is about 6938.1731745467. The cubic root of 48138247 is about 363.7726889561.

The spelling of 48138247 in words is "forty-eight million, one hundred thirty-eight thousand, two hundred forty-seven".