1210552530 has 64 divisors (see below), whose sum is σ = 3178137600. Its totient is φ = 292662720.

The previous prime is 1210552517. The next prime is 1210552559. The reversal of 1210552530 is 352550121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210552530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120231 + ... + 129909.

It is an arithmetic number, because the mean of its divisors is an integer number (49658400).

Almost surely, 2^1210552530 is an apocalyptic number.

1210552530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210552530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589068800).

1210552530 is an abundant number, since it is smaller than the sum of its proper divisors (1967585070).

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

1210552530 is a wasteful number, since it uses less digits than its factorization.

1210552530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1210552530 is about 34792.9954157442. The cubic root of 1210552530 is about 1065.7644096613.

The spelling of 1210552530 in words is "one billion, two hundred ten million, five hundred fifty-two thousand, five hundred thirty".