3901810061 has 2 divisors, whose sum is σ = 3901810062. Its totient is φ = 3901810060.

The previous prime is 3901810051. The next prime is 3901810177. The reversal of 3901810061 is 1600181093.

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., 2743769161 + 1158040900 = 52381^2 + 34030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3901810061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3901810051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950905030 + 1950905031.

It is an arithmetic number, because the mean of its divisors is an integer number (1950905031).

Almost surely, 2^3901810061 is an apocalyptic number.

It is an amenable number.

3901810061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3901810061 is an equidigital number, since it uses as much as digits as its factorization.

3901810061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 3901810061 is about 62464.4703891740. The cubic root of 3901810061 is about 1574.3043957434.

The spelling of 3901810061 in words is "three billion, nine hundred one million, eight hundred ten thousand, sixty-one".