3135661387 has 2 divisors, whose sum is σ = 3135661388. Its totient is φ = 3135661386.

The previous prime is 3135661381. The next prime is 3135661433. The reversal of 3135661387 is 7831665313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7831665313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3135661387 - 2³ = 3135661379 is a prime.

It is not a weakly prime, because it can be changed into another prime (3135661381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567830693 + 1567830694.

It is an arithmetic number, because the mean of its divisors is an integer number (1567830694).

Almost surely, 2^3135661387 is an apocalyptic number.

3135661387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135661387 is an equidigital number, since it uses as much as digits as its factorization.

3135661387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 3135661387 is about 55996.9765880266. The cubic root of 3135661387 is about 1463.6695997794.

The spelling of 3135661387 in words is "three billion, one hundred thirty-five million, six hundred sixty-one thousand, three hundred eighty-seven".