425136247 has 2 divisors, whose sum is σ = 425136248. Its totient is φ = 425136246.

The previous prime is 425136233. The next prime is 425136331. The reversal of 425136247 is 742631524.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425136247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425131247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212568123 + 212568124.

It is an arithmetic number, because the mean of its divisors is an integer number (212568124).

Almost surely, 2^425136247 is an apocalyptic number.

425136247 is a deficient number, since it is larger than the sum of its proper divisors (1).

425136247 is an equidigital number, since it uses as much as digits as its factorization.

425136247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 425136247 is about 20618.8323384230. The cubic root of 425136247 is about 751.9276322157.

The spelling of 425136247 in words is "four hundred twenty-five million, one hundred thirty-six thousand, two hundred forty-seven".