3136648145 has 4 divisors (see below), whose sum is σ = 3763977780. Its totient is φ = 2509318512.

The previous prime is 3136648127. The next prime is 3136648147. The reversal of 3136648145 is 5418466313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1018439569 + 2118208576 = 31913^2 + 46024^2 .

It is a cyclic number.

It is not a de Polignac number, because 3136648145 - 2¹⁴ = 3136631761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3136648147) 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, 313664810 + ... + 313664819.

It is an arithmetic number, because the mean of its divisors is an integer number (940994445).

Almost surely, 2^3136648145 is an apocalyptic number.

It is an amenable number.

3136648145 is a deficient number, since it is larger than the sum of its proper divisors (627329635).

3136648145 is an equidigital number, since it uses as much as digits as its factorization.

3136648145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627329634.

The product of its digits is 207360, while the sum is 41.

The square root of 3136648145 is about 56005.7867099463. The cubic root of 3136648145 is about 1463.8231172286.

The spelling of 3136648145 in words is "three billion, one hundred thirty-six million, six hundred forty-eight thousand, one hundred forty-five".