475745131 has 2 divisors, whose sum is σ = 475745132. Its totient is φ = 475745130.

The previous prime is 475745117. The next prime is 475745141. The reversal of 475745131 is 131547574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475745131 is a prime.

It is a super-4 number, since 4×475745131⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (475745141) 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 as a sum of consecutive naturals, namely, 237872565 + 237872566.

It is an arithmetic number, because the mean of its divisors is an integer number (237872566).

Almost surely, 2^475745131 is an apocalyptic number.

475745131 is a deficient number, since it is larger than the sum of its proper divisors (1).

475745131 is an equidigital number, since it uses as much as digits as its factorization.

475745131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 475745131 is about 21811.5824964627. The cubic root of 475745131 is about 780.6531516879.

The spelling of 475745131 in words is "four hundred seventy-five million, seven hundred forty-five thousand, one hundred thirty-one".