471902131 has 2 divisors, whose sum is σ = 471902132. Its totient is φ = 471902130.

The previous prime is 471902113. The next prime is 471902159. The reversal of 471902131 is 131209174.

Together with previous prime (471902113) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (471902159) can be obtained adding 471902131 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 471902131 - 2¹⁹ = 471377843 is a prime.

It is a super-2 number, since 2×471902131² = 445383242484682322, 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 471902131.

It is not a weakly prime, because it can be changed into another prime (471902731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235951065 + 235951066.

It is an arithmetic number, because the mean of its divisors is an integer number (235951066).

Almost surely, 2^471902131 is an apocalyptic number.

471902131 is a deficient number, since it is larger than the sum of its proper divisors (1).

471902131 is an equidigital number, since it uses as much as digits as its factorization.

471902131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 471902131 is about 21723.3084726982. The cubic root of 471902131 is about 778.5454653776.

The spelling of 471902131 in words is "four hundred seventy-one million, nine hundred two thousand, one hundred thirty-one".