1530740871 has 72 divisors (see below), whose sum is σ = 2579391360. Its totient is φ = 871659360.

The previous prime is 1530740839. The next prime is 1530740903. The reversal of 1530740871 is 1780470351.

1530740871 is a `hidden beast` number, since 1 + 530 + 7 + 40 + 87 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1530740839) and next prime (1530740903).

It is not a de Polignac number, because 1530740871 - 2⁵ = 1530740839 is a prime.

It is a super-2 number, since 2×1530740871² = 4686335228299677282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530740831) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3455176 + ... + 3455618.

It is an arithmetic number, because the mean of its divisors is an integer number (35824880).

Almost surely, 2^1530740871 is an apocalyptic number.

1530740871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1530740871 is a deficient number, since it is larger than the sum of its proper divisors (1048650489).

1530740871 is a wasteful number, since it uses less digits than its factorization.

1530740871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 1530740871 is about 39124.6836536732. The cubic root of 1530740871 is about 1152.4813142652.

The spelling of 1530740871 in words is "one billion, five hundred thirty million, seven hundred forty thousand, eight hundred seventy-one".