3135040421 has 2 divisors, whose sum is σ = 3135040422. Its totient is φ = 3135040420.

The previous prime is 3135040417. The next prime is 3135040427. The reversal of 3135040421 is 1240405313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2564308321 + 570732100 = 50639^2 + 23890^2 .

It is a cyclic number.

It is not a de Polignac number, because 3135040421 - 2² = 3135040417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3135040427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567520210 + 1567520211.

It is an arithmetic number, because the mean of its divisors is an integer number (1567520211).

Almost surely, 2^3135040421 is an apocalyptic number.

It is an amenable number.

3135040421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135040421 is an equidigital number, since it uses as much as digits as its factorization.

3135040421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3135040421 is about 55991.4316748554. The cubic root of 3135040421 is about 1463.5729748628.

Adding to 3135040421 its reverse (1240405313), we get a palindrome (4375445734).

The spelling of 3135040421 in words is "three billion, one hundred thirty-five million, forty thousand, four hundred twenty-one".