425136331 has 2 divisors, whose sum is σ = 425136332. Its totient is φ = 425136330.

The previous prime is 425136247. The next prime is 425136379. The reversal of 425136331 is 133631524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425136331 - 2⁷ = 425136203 is a prime.

It is a super-2 number, since 2×425136331² = 361481799872283122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_22603357 and since 425136331 and 22603357 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425136331.

It is not a weakly prime, because it can be changed into another prime (425131331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212568165 + 212568166.

It is an arithmetic number, because the mean of its divisors is an integer number (212568166).

Almost surely, 2^425136331 is an apocalyptic number.

425136331 is a deficient number, since it is larger than the sum of its proper divisors (1).

425136331 is an equidigital number, since it uses as much as digits as its factorization.

425136331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 425136331 is about 20618.8343753957. The cubic root of 425136331 is about 751.9276817386.

Adding to 425136331 its reverse (133631524), we get a palindrome (558767855).

The spelling of 425136331 in words is "four hundred twenty-five million, one hundred thirty-six thousand, three hundred thirty-one".