247142075 has 24 divisors (see below), whose sum is σ = 317598720. Its totient is φ = 190576800.

The previous prime is 247142069. The next prime is 247142083. The reversal of 247142075 is 570241742.

It is not a de Polignac number, because 247142075 - 2¹⁴ = 247125691 is a prime.

It is a super-2 number, since 2×247142075² = 122158410470611250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268466 + ... + 269384.

It is an arithmetic number, because the mean of its divisors is an integer number (13233280).

Almost surely, 2^247142075 is an apocalyptic number.

247142075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

247142075 is a deficient number, since it is larger than the sum of its proper divisors (70456645).

247142075 is a wasteful number, since it uses less digits than its factorization.

247142075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 247142075 is about 15720.7530035937. The cubic root of 247142075 is about 627.5508125390.

The spelling of 247142075 in words is "two hundred forty-seven million, one hundred forty-two thousand, seventy-five".