1530653251 has 2 divisors, whose sum is σ = 1530653252. Its totient is φ = 1530653250.

The previous prime is 1530653249. The next prime is 1530653261. The reversal of 1530653251 is 1523560351.

It is a weak prime.

It is an emirp because it is prime and its reverse (1523560351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530653251 - 2¹ = 1530653249 is a prime.

Together with 1530653249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1530653221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765326625 + 765326626.

It is an arithmetic number, because the mean of its divisors is an integer number (765326626).

Almost surely, 2^1530653251 is an apocalyptic number.

1530653251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530653251 is an equidigital number, since it uses as much as digits as its factorization.

1530653251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1530653251 is about 39123.5638841862. The cubic root of 1530653251 is about 1152.4593244036.

The spelling of 1530653251 in words is "one billion, five hundred thirty million, six hundred fifty-three thousand, two hundred fifty-one".