7405133481 has 20 divisors (see below), whose sum is σ = 11066569492. Its totient is φ = 4934711808.

The previous prime is 7405133459. The next prime is 7405133503. The reversal of 7405133481 is 1843315047.

It is a happy number.

7405133481 is a `hidden beast` number, since 7 + 40 + 5 + 133 + 481 = 666.

It is an interprime number because it is at equal distance from previous prime (7405133459) and next prime (7405133503).

It can be written as a sum of positive squares in 2 ways, for example, as 1758963600 + 5646169881 = 41940^2 + 75141^2 .

It is not a de Polignac number, because 7405133481 - 2⁷ = 7405133353 is a prime.

It is a super-2 number, since 2×7405133481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7405133881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 192405 + ... + 227661.

Almost surely, 2^7405133481 is an apocalyptic number.

It is an amenable number.

7405133481 is a deficient number, since it is larger than the sum of its proper divisors (3661436011).

7405133481 is a wasteful number, since it uses less digits than its factorization.

7405133481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37862 (or 37853 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 7405133481 is about 86053.0852497457. The cubic root of 7405133481 is about 1949.1456683595.

The spelling of 7405133481 in words is "seven billion, four hundred five million, one hundred thirty-three thousand, four hundred eighty-one".