730131131 has 4 divisors (see below), whose sum is σ = 730686000. Its totient is φ = 729576264.

The previous prime is 730131109. The next prime is 730131133. The reversal of 730131131 is 131131037.

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-730131131 is a prime.

It is a super-2 number, since 2×730131131² = 1066182936910678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275456 + ... + 278093.

It is an arithmetic number, because the mean of its divisors is an integer number (182671500).

Almost surely, 2^730131131 is an apocalyptic number.

730131131 is a deficient number, since it is larger than the sum of its proper divisors (554869).

730131131 is a wasteful number, since it uses less digits than its factorization.

730131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554868.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 730131131 is about 27020.9387512721. The cubic root of 730131131 is about 900.4652454631.

Adding to 730131131 its reverse (131131037), we get a palindrome (861262168).

The spelling of 730131131 in words is "seven hundred thirty million, one hundred thirty-one thousand, one hundred thirty-one".