1025423317 has 2 divisors, whose sum is σ = 1025423318. Its totient is φ = 1025423316.

The previous prime is 1025423281. The next prime is 1025423339. The reversal of 1025423317 is 7133245201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906852996 + 118570321 = 30114^2 + 10889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025423317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025423617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512711658 + 512711659.

It is an arithmetic number, because the mean of its divisors is an integer number (512711659).

Almost surely, 2^1025423317 is an apocalyptic number.

It is an amenable number.

1025423317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025423317 is an equidigital number, since it uses as much as digits as its factorization.

1025423317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1025423317 is about 32022.2316055580. The cubic root of 1025423317 is about 1008.4036203416.

Adding to 1025423317 its reverse (7133245201), we get a palindrome (8158668518).

The spelling of 1025423317 in words is "one billion, twenty-five million, four hundred twenty-three thousand, three hundred seventeen".