2147488281 has 45 divisors (see below), whose sum is σ = 3398243013. Its totient is φ = 1351303560.

The previous prime is 2147488279. The next prime is 2147488307. The reversal of 2147488281 is 1828847412.

The square root of 2147488281 is 46341.

It is a perfect power (a square), and thus also a powerful number.

2147488281 is a `hidden beast` number, since 2 + 147 + 488 + 28 + 1 = 666.

It is not a de Polignac number, because 2147488281 - 2¹ = 2147488279 is a prime.

It is a super-2 number, since 2×2147488281² = 9223411834064669922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2147488381) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 7924176 + ... + 7924446.

Almost surely, 2^2147488281 is an apocalyptic number.

2147488281 is the 46341-st square number.

2147488281 is the 23171-st centered octagonal number.

It is an amenable number.

2147488281 is a deficient number, since it is larger than the sum of its proper divisors (1250754732).

2147488281 is an frugal number, since it uses more digits than its factorization.

2147488281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 293 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The cubic root of 2147488281 is about 1290.1600828919.

The spelling of 2147488281 in words is "two billion, one hundred forty-seven million, four hundred eighty-eight thousand, two hundred eighty-one".