825426137 has 2 divisors, whose sum is σ = 825426138. Its totient is φ = 825426136.

The previous prime is 825426097. The next prime is 825426223. The reversal of 825426137 is 731624528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 785344576 + 40081561 = 28024^2 + 6331^2 .

It is a cyclic number.

It is not a de Polignac number, because 825426137 - 2¹⁸ = 825163993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 825426137.

It is not a weakly prime, because it can be changed into another prime (825420137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412713068 + 412713069.

It is an arithmetic number, because the mean of its divisors is an integer number (412713069).

Almost surely, 2^825426137 is an apocalyptic number.

It is an amenable number.

825426137 is a deficient number, since it is larger than the sum of its proper divisors (1).

825426137 is an equidigital number, since it uses as much as digits as its factorization.

825426137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 825426137 is about 28730.2303680287. The cubic root of 825426137 is about 938.0501823480.

The spelling of 825426137 in words is "eight hundred twenty-five million, four hundred twenty-six thousand, one hundred thirty-seven".