730149531 has 8 divisors (see below), whose sum is σ = 976323600. Its totient is φ = 485370912.

The previous prime is 730149529. The next prime is 730149547. The reversal of 730149531 is 135941037.

730149531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 730149531 - 2¹ = 730149529 is a prime.

It is a super-2 number, since 2×730149531² = 1066236675239039922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 730149492 and 730149501.

It is not an unprimeable number, because it can be changed into a prime (730149731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347640 + ... + 349733.

It is an arithmetic number, because the mean of its divisors is an integer number (122040450).

Almost surely, 2^730149531 is an apocalyptic number.

730149531 is a deficient number, since it is larger than the sum of its proper divisors (246174069).

730149531 is a wasteful number, since it uses less digits than its factorization.

730149531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697725.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 730149531 is about 27021.2792258250. The cubic root of 730149531 is about 900.4728095935.

The spelling of 730149531 in words is "seven hundred thirty million, one hundred forty-nine thousand, five hundred thirty-one".