4135921061 has 2 divisors, whose sum is σ = 4135921062. Its totient is φ = 4135921060.

The previous prime is 4135921057. The next prime is 4135921093. The reversal of 4135921061 is 1601295314.

4135921061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (4135921093) can be obtained adding 4135921061 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3043618561 + 1092302500 = 55169^2 + 33050^2 .

It is a cyclic number.

It is not a de Polignac number, because 4135921061 - 2² = 4135921057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4135921561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067960530 + 2067960531.

It is an arithmetic number, because the mean of its divisors is an integer number (2067960531).

Almost surely, 2^4135921061 is an apocalyptic number.

It is an amenable number.

4135921061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4135921061 is an equidigital number, since it uses as much as digits as its factorization.

4135921061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 4135921061 is about 64311.1270387948. The cubic root of 4135921061 is about 1605.1812583081.

The spelling of 4135921061 in words is "four billion, one hundred thirty-five million, nine hundred twenty-one thousand, sixty-one".