38130247 has 2 divisors, whose sum is σ = 38130248. Its totient is φ = 38130246.

The previous prime is 38130241. The next prime is 38130259. The reversal of 38130247 is 74203183.

It is a weak prime.

It is an emirp because it is prime and its reverse (74203183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38130247 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 (38130241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19065123 + 19065124.

It is an arithmetic number, because the mean of its divisors is an integer number (19065124).

Almost surely, 2^38130247 is an apocalyptic number.

38130247 is a deficient number, since it is larger than the sum of its proper divisors (1).

38130247 is an equidigital number, since it uses as much as digits as its factorization.

38130247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38130247 is about 6174.9693926367. The cubic root of 38130247 is about 336.5812142479.

It can be divided in two parts, 381 and 30247, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 38130247 in words is "thirty-eight million, one hundred thirty thousand, two hundred forty-seven".