1530705705 has 16 divisors (see below), whose sum is σ = 2451120000. Its totient is φ = 815712768.

The previous prime is 1530705691. The next prime is 1530705707. The reversal of 1530705705 is 5075070351.

It is not a de Polignac number, because 1530705705 - 2¹⁹ = 1530181417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1530705707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22117 + ... + 59586.

It is an arithmetic number, because the mean of its divisors is an integer number (153195000).

Almost surely, 2^1530705705 is an apocalyptic number.

1530705705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530705705 is a deficient number, since it is larger than the sum of its proper divisors (920414295).

1530705705 is a wasteful number, since it uses less digits than its factorization.

1530705705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82960.

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 1530705705 is about 39124.2342417075. The cubic root of 1530705705 is about 1152.4724888071.

The spelling of 1530705705 in words is "one billion, five hundred thirty million, seven hundred five thousand, seven hundred five".