730057531 has 8 divisors (see below), whose sum is σ = 835437024. Its totient is φ = 624949440.

The previous prime is 730057529. The next prime is 730057541. The reversal of 730057531 is 135750037.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 730057531 - 2¹ = 730057529 is a prime.

It is a super-2 number, since 2×730057531² = 1065967997139631922, 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 = 730057493 and 730057502.

It is not an unprimeable number, because it can be changed into a prime (730057541) 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 7 ways as a sum of consecutive naturals, for example, 62050 + ... + 72871.

It is an arithmetic number, because the mean of its divisors is an integer number (104429628).

Almost surely, 2^730057531 is an apocalyptic number.

730057531 is a deficient number, since it is larger than the sum of its proper divisors (105379493).

730057531 is a wasteful number, since it uses less digits than its factorization.

730057531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135701.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 730057531 is about 27019.5768101575. The cubic root of 730057531 is about 900.4349876704.

The spelling of 730057531 in words is "seven hundred thirty million, fifty-seven thousand, five hundred thirty-one".