1530249223 has 4 divisors (see below), whose sum is σ = 1539412560. Its totient is φ = 1521085888.

The previous prime is 1530249211. The next prime is 1530249241. The reversal of 1530249223 is 3229420351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1530249223 - 2¹⁷ = 1530118151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530289223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4581418 + ... + 4581751.

It is an arithmetic number, because the mean of its divisors is an integer number (384853140).

Almost surely, 2^1530249223 is an apocalyptic number.

1530249223 is a deficient number, since it is larger than the sum of its proper divisors (9163337).

1530249223 is an equidigital number, since it uses as much as digits as its factorization.

1530249223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163336.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1530249223 is about 39118.4000567508. The cubic root of 1530249223 is about 1152.3579152373.

Adding to 1530249223 its reverse (3229420351), we get a palindrome (4759669574).

The spelling of 1530249223 in words is "one billion, five hundred thirty million, two hundred forty-nine thousand, two hundred twenty-three".