134400481 has 2 divisors, whose sum is σ = 134400482. Its totient is φ = 134400480.

The previous prime is 134400473. The next prime is 134400491. The reversal of 134400481 is 184004431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132618256 + 1782225 = 11516^2 + 1335^2 .

It is a cyclic number.

It is not a de Polignac number, because 134400481 - 2³ = 134400473 is a prime.

It is a super-2 number, since 2×134400481² = 36126978586062722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134400491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67200240 + 67200241.

It is an arithmetic number, because the mean of its divisors is an integer number (67200241).

Almost surely, 2^134400481 is an apocalyptic number.

It is an amenable number.

134400481 is a deficient number, since it is larger than the sum of its proper divisors (1).

134400481 is an equidigital number, since it uses as much as digits as its factorization.

134400481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 134400481 is about 11593.1221420289. The cubic root of 134400481 is about 512.2322770643.

The spelling of 134400481 in words is "one hundred thirty-four million, four hundred thousand, four hundred eighty-one".