3135642047 has 4 divisors (see below), whose sum is σ = 3136367400. Its totient is φ = 3134916696.

The previous prime is 3135642043. The next prime is 3135642053. The reversal of 3135642047 is 7402465313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3135642047 - 2² = 3135642043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3135641998 and 3135642016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3135642043) 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, 356153 + ... + 364850.

It is an arithmetic number, because the mean of its divisors is an integer number (784091850).

Almost surely, 2^3135642047 is an apocalyptic number.

3135642047 is a deficient number, since it is larger than the sum of its proper divisors (725353).

3135642047 is an equidigital number, since it uses as much as digits as its factorization.

3135642047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725352.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 3135642047 is about 55996.8038998656. The cubic root of 3135642047 is about 1463.6665905867. Note that the first 3 decimals are identical.

The spelling of 3135642047 in words is "three billion, one hundred thirty-five million, six hundred forty-two thousand, forty-seven".