1230797530 has 16 divisors (see below), whose sum is σ = 2220228864. Its totient is φ = 491253840.

The previous prime is 1230797479. The next prime is 1230797539. The reversal of 1230797530 is 357970321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230797530.

It is not an unprimeable number, because it can be changed into a prime (1230797539) 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, 128286 + ... + 137545.

It is an arithmetic number, because the mean of its divisors is an integer number (138764304).

Almost surely, 2^1230797530 is an apocalyptic number.

1230797530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230797530 is a deficient number, since it is larger than the sum of its proper divisors (989431334).

1230797530 is a wasteful number, since it uses less digits than its factorization.

1230797530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266301.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 1230797530 is about 35082.7240960562. The cubic root of 1230797530 is about 1071.6727932505.

The spelling of 1230797530 in words is "one billion, two hundred thirty million, seven hundred ninety-seven thousand, five hundred thirty".