247271061 has 16 divisors (see below), whose sum is σ = 335795328. Its totient is φ = 161817600.

The previous prime is 247271047. The next prime is 247271077. The reversal of 247271061 is 160172742.

It is not a de Polignac number, because 247271061 - 2⁵ = 247271029 is a prime.

It is a super-2 number, since 2×247271061² = 122285955216131442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247271161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48925 + ... + 53741.

It is an arithmetic number, because the mean of its divisors is an integer number (20987208).

Almost surely, 2^247271061 is an apocalyptic number.

It is an amenable number.

247271061 is a deficient number, since it is larger than the sum of its proper divisors (88524267).

247271061 is a wasteful number, since it uses less digits than its factorization.

247271061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 247271061 is about 15724.8548800935. The cubic root of 247271061 is about 627.6599686336.

The spelling of 247271061 in words is "two hundred forty-seven million, two hundred seventy-one thousand, sixty-one".