6147633281 has 6 divisors (see below), whose sum is σ = 6352342146. Its totient is φ = 5949321600.

The previous prime is 6147633263. The next prime is 6147633341. The reversal of 6147633281 is 1823367416.

It can be written as a sum of positive squares in only one way, i.e., 4157670400 + 1989962881 = 64480^2 + 44609^2 .

It is not a de Polignac number, because 6147633281 - 2¹⁴ = 6147616897 is a prime.

It is a super-2 number, since 2×6147633281² = 75586789915317649922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6147633221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3197600 + ... + 3199521.

It is an arithmetic number, because the mean of its divisors is an integer number (1058723691).

Almost surely, 2^6147633281 is an apocalyptic number.

It is an amenable number.

6147633281 is a deficient number, since it is larger than the sum of its proper divisors (204708865).

6147633281 is an equidigital number, since it uses as much as digits as its factorization.

6147633281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6397183 (or 6397152 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 6147633281 is about 78406.8446055572. The cubic root of 6147633281 is about 1831.9037471955.

The spelling of 6147633281 in words is "six billion, one hundred forty-seven million, six hundred thirty-three thousand, two hundred eighty-one".