630140041 has 2 divisors, whose sum is σ = 630140042. Its totient is φ = 630140040.

The previous prime is 630140023. The next prime is 630140083. The reversal of 630140041 is 140041036.

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., 486643600 + 143496441 = 22060^2 + 11979^2 .

It is a cyclic number.

It is not a de Polignac number, because 630140041 - 2¹³ = 630131849 is a prime.

It is not a weakly prime, because it can be changed into another prime (630140141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315070020 + 315070021.

It is an arithmetic number, because the mean of its divisors is an integer number (315070021).

Almost surely, 2^630140041 is an apocalyptic number.

It is an amenable number.

630140041 is a deficient number, since it is larger than the sum of its proper divisors (1).

630140041 is an equidigital number, since it uses as much as digits as its factorization.

630140041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 630140041 is about 25102.5903245064. The cubic root of 630140041 is about 857.3254030027.

Adding to 630140041 its reverse (140041036), we get a palindrome (770181077).

The spelling of 630140041 in words is "six hundred thirty million, one hundred forty thousand, forty-one".