1530373261 has 2 divisors, whose sum is σ = 1530373262. Its totient is φ = 1530373260.

The previous prime is 1530373253. The next prime is 1530373277. The reversal of 1530373261 is 1623730351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854685225 + 675688036 = 29235^2 + 25994^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530373261 - 2³ = 1530373253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530373291) 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 as a sum of consecutive naturals, namely, 765186630 + 765186631.

It is an arithmetic number, because the mean of its divisors is an integer number (765186631).

Almost surely, 2^1530373261 is an apocalyptic number.

It is an amenable number.

1530373261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530373261 is an equidigital number, since it uses as much as digits as its factorization.

1530373261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 1530373261 is about 39119.9854422263. The cubic root of 1530373261 is about 1152.3890501023.

The spelling of 1530373261 in words is "one billion, five hundred thirty million, three hundred seventy-three thousand, two hundred sixty-one".