1530253251 has 12 divisors (see below), whose sum is σ = 2221588512. Its totient is φ = 1014989136.

The previous prime is 1530253247. The next prime is 1530253271. The reversal of 1530253251 is 1523520351.

It is a happy number.

It is not a de Polignac number, because 1530253251 - 2² = 1530253247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530253271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429771 + ... + 433316.

It is an arithmetic number, because the mean of its divisors is an integer number (185132376).

Almost surely, 2^1530253251 is an apocalyptic number.

1530253251 is a deficient number, since it is larger than the sum of its proper divisors (691335261).

1530253251 is a wasteful number, since it uses less digits than its factorization.

1530253251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863290 (or 863287 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1530253251 is about 39118.4515414401. The cubic root of 1530253251 is about 1152.3589263348.

The spelling of 1530253251 in words is "one billion, five hundred thirty million, two hundred fifty-three thousand, two hundred fifty-one".