247261130 has 16 divisors (see below), whose sum is σ = 449478504. Its totient is φ = 97924800.

The previous prime is 247261127. The next prime is 247261139. The reversal of 247261130 is 31162742.

It can be written as a sum of positive squares in 4 ways, for example, as 242642929 + 4618201 = 15577^2 + 2149^2 .

It is a super-2 number, since 2×247261130² = 122276132817753800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247261130.

It is not an unprimeable number, because it can be changed into a prime (247261139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121397 + ... + 123416.

Almost surely, 2^247261130 is an apocalyptic number.

247261130 is a deficient number, since it is larger than the sum of its proper divisors (202217374).

247261130 is a wasteful number, since it uses less digits than its factorization.

247261130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244921.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 247261130 is about 15724.5391029435. The cubic root of 247261130 is about 627.6515657435.

The spelling of 247261130 in words is "two hundred forty-seven million, two hundred sixty-one thousand, one hundred thirty".