729148481 has 2 divisors, whose sum is σ = 729148482. Its totient is φ = 729148480.

The previous prime is 729148457. The next prime is 729148493. The reversal of 729148481 is 184841927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716044081 + 13104400 = 26759^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 729148481 - 2¹⁴ = 729132097 is a prime.

It is a super-2 number, since 2×729148481² = 1063315014689214722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (729148451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364574240 + 364574241.

It is an arithmetic number, because the mean of its divisors is an integer number (364574241).

Almost surely, 2^729148481 is an apocalyptic number.

It is an amenable number.

729148481 is a deficient number, since it is larger than the sum of its proper divisors (1).

729148481 is an equidigital number, since it uses as much as digits as its factorization.

729148481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 729148481 is about 27002.7495081519. The cubic root of 729148481 is about 900.0610991442.

The spelling of 729148481 in words is "seven hundred twenty-nine million, one hundred forty-eight thousand, four hundred eighty-one".