94131481 has 2 divisors, whose sum is σ = 94131482. Its totient is φ = 94131480.

The previous prime is 94131461. The next prime is 94131493. The reversal of 94131481 is 18413149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50637456 + 43494025 = 7116^2 + 6595^2 .

It is an emirp because it is prime and its reverse (18413149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94131481 - 2⁷ = 94131353 is a prime.

It is a super-2 number, since 2×94131481² = 17721471430506722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94131421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47065740 + 47065741.

It is an arithmetic number, because the mean of its divisors is an integer number (47065741).

Almost surely, 2^94131481 is an apocalyptic number.

It is an amenable number.

94131481 is a deficient number, since it is larger than the sum of its proper divisors (1).

94131481 is an equidigital number, since it uses as much as digits as its factorization.

94131481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 94131481 is about 9702.1379602642. The cubic root of 94131481 is about 454.8954894207.

It can be divided in two parts, 9413148 and 1, that added together give a palindrome (9413149).

The spelling of 94131481 in words is "ninety-four million, one hundred thirty-one thousand, four hundred eighty-one".