247190031 has 12 divisors (see below), whose sum is σ = 389511720. Its totient is φ = 149812080.

The previous prime is 247190011. The next prime is 247190077. The reversal of 247190031 is 130091742.

It is not a de Polignac number, because 247190031 - 2⁹ = 247189519 is a prime.

It is a super-2 number, since 2×247190031² = 122205822851561922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247189977 and 247190004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247190011) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1248336 + ... + 1248533.

It is an arithmetic number, because the mean of its divisors is an integer number (32459310).

Almost surely, 2^247190031 is an apocalyptic number.

247190031 is a deficient number, since it is larger than the sum of its proper divisors (142321689).

247190031 is a wasteful number, since it uses less digits than its factorization.

247190031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496886 (or 2496883 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 247190031 is about 15722.2781746158. The cubic root of 247190031 is about 627.5914003674.

The spelling of 247190031 in words is "two hundred forty-seven million, one hundred ninety thousand, thirty-one".