3147146381 has 16 divisors (see below), whose sum is σ = 3392202240. Its totient is φ = 2913032640.

The previous prime is 3147146341. The next prime is 3147146411. The reversal of 3147146381 is 1836417413.

It is a cyclic number.

It is not a de Polignac number, because 3147146381 - 2²² = 3142952077 is a prime.

It is a super-2 number, since 2×3147146381² = 19809060686882794322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147146341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79835 + ... + 112551.

It is an arithmetic number, because the mean of its divisors is an integer number (212012640).

Almost surely, 2^3147146381 is an apocalyptic number.

3147146381 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3147146381 is a deficient number, since it is larger than the sum of its proper divisors (245055859).

3147146381 is a wasteful number, since it uses less digits than its factorization.

3147146381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32884.

The product of its digits is 48384, while the sum is 38.

The square root of 3147146381 is about 56099.4329828743. The cubic root of 3147146381 is about 1465.4544177736.

The spelling of 3147146381 in words is "three billion, one hundred forty-seven million, one hundred forty-six thousand, three hundred eighty-one".