730147331 has 4 divisors (see below), whose sum is σ = 773097192. Its totient is φ = 687197472.

The previous prime is 730147321. The next prime is 730147357. The reversal of 730147331 is 133741037.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730147331 is a prime.

It is a super-2 number, since 2×730147331² = 1066230249932847122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730147294 and 730147303.

It is not an unprimeable number, because it can be changed into a prime (730147321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21474905 + ... + 21474938.

It is an arithmetic number, because the mean of its divisors is an integer number (193274298).

Almost surely, 2^730147331 is an apocalyptic number.

730147331 is a deficient number, since it is larger than the sum of its proper divisors (42949861).

730147331 is a wasteful number, since it uses less digits than its factorization.

730147331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42949860.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 730147331 is about 27021.2385171368. The cubic root of 730147331 is about 900.4719051933.

Adding to 730147331 its reverse (133741037), we get a palindrome (863888368).

The spelling of 730147331 in words is "seven hundred thirty million, one hundred forty-seven thousand, three hundred thirty-one".