6146640331 has 4 divisors (see below), whose sum is σ = 6619458832. Its totient is φ = 5673821832.

The previous prime is 6146640323. The next prime is 6146640347. The reversal of 6146640331 is 1330466416.

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 6146640331 - 2³ = 6146640323 is a prime.

It is a super-2 number, since 2×6146640331² = 75562374717351579122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6146640301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236409231 + ... + 236409256.

It is an arithmetic number, because the mean of its divisors is an integer number (1654864708).

Almost surely, 2^6146640331 is an apocalyptic number.

6146640331 is a deficient number, since it is larger than the sum of its proper divisors (472818501).

6146640331 is a wasteful number, since it uses less digits than its factorization.

6146640331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472818500.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6146640331 is about 78400.5123133771. The cubic root of 6146640331 is about 1831.8051137494.

The spelling of 6146640331 in words is "six billion, one hundred forty-six million, six hundred forty thousand, three hundred thirty-one".