3138556530 has 32 divisors (see below), whose sum is σ = 7537831488. Its totient is φ = 836360000.

The previous prime is 3138556513. The next prime is 3138556537. The reversal of 3138556530 is 356558313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3138556537) 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, 7480 + ... + 79580.

It is an arithmetic number, because the mean of its divisors is an integer number (235557234).

Almost surely, 2^3138556530 is an apocalyptic number.

3138556530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3138556530 is an abundant number, since it is smaller than the sum of its proper divisors (4399274958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3138556530 is a wasteful number, since it uses less digits than its factorization.

3138556530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73562.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 3138556530 is about 56022.8215105237. The cubic root of 3138556530 is about 1464.1199278789.

The spelling of 3138556530 in words is "three billion, one hundred thirty-eight million, five hundred fifty-six thousand, five hundred thirty".