4135402061 has 4 divisors (see below), whose sum is σ = 4726173792. Its totient is φ = 3544630332.

The previous prime is 4135402021. The next prime is 4135402087. The reversal of 4135402061 is 1602045314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4135402061 is a prime.

It is a super-2 number, since 2×4135402061² = 34203100412246095442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4135402061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4135402021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295385855 + ... + 295385868.

It is an arithmetic number, because the mean of its divisors is an integer number (1181543448).

Almost surely, 2^4135402061 is an apocalyptic number.

It is an amenable number.

4135402061 is a deficient number, since it is larger than the sum of its proper divisors (590771731).

4135402061 is an equidigital number, since it uses as much as digits as its factorization.

4135402061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590771730.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4135402061 is about 64307.0918406361. The cubic root of 4135402061 is about 1605.1141129322.

Adding to 4135402061 its reverse (1602045314), we get a palindrome (5737447375).

The spelling of 4135402061 in words is "four billion, one hundred thirty-five million, four hundred two thousand, sixty-one".