247149274 has 8 divisors (see below), whose sum is σ = 370796148. Its totient is φ = 123550560.

The previous prime is 247149263. The next prime is 247149317. The reversal of 247149274 is 472941742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 240467049 + 6682225 = 15507^2 + 2585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×247149274² = 122165527277454152, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6504 + ... + 23164.

Almost surely, 2^247149274 is an apocalyptic number.

247149274 is a deficient number, since it is larger than the sum of its proper divisors (123646874).

247149274 is a wasteful number, since it uses less digits than its factorization.

247149274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24080.

The product of its digits is 112896, while the sum is 40.

The square root of 247149274 is about 15720.9819667857. The cubic root of 247149274 is about 627.5569057878.

The spelling of 247149274 in words is "two hundred forty-seven million, one hundred forty-nine thousand, two hundred seventy-four".