730148 has 6 divisors (see below), whose sum is σ = 1277766. Its totient is φ = 365072.

The previous prime is 730139. The next prime is 730157. The reversal of 730148 is 841037.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (730139) and next prime (730157).

It can be written as a sum of positive squares in only one way, i.e., 652864 + 77284 = 808^2 + 278^2 .

It is a super-2 number, since 2×730148² = 1066232203808, which contains 22 as substring.

It is an unprimeable number.

730148 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91265 + ... + 91272.

It is an arithmetic number, because the mean of its divisors is an integer number (212961).

2⁷³⁰¹⁴⁸ is an apocalyptic number.

It is an amenable number.

730148 is a deficient number, since it is larger than the sum of its proper divisors (547618).

730148 is a wasteful number, since it uses less digits than its factorization.

730148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182541 (or 182539 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 730148 is about 854.4869805913. The cubic root of 730148 is about 90.0472180213.

Subtracting 730148 from its reverse (841037), we obtain a square (110889 = 333²).

It can be divided in two parts, 730 and 148, that added together give a palindrome (878).

The spelling of 730148 in words is "seven hundred thirty thousand, one hundred forty-eight".