1530752140 has 12 divisors (see below), whose sum is σ = 3214579536. Its totient is φ = 612300848.

The previous prime is 1530752129. The next prime is 1530752191. The reversal of 1530752140 is 412570351.

It is a happy number.

It is a super-2 number, since 2×1530752140² = 4686404228229159200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1530752099 and 1530752108.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 38268784 + ... + 38268823.

It is an arithmetic number, because the mean of its divisors is an integer number (267881628).

Almost surely, 2^1530752140 is an apocalyptic number.

1530752140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530752140 is an abundant number, since it is smaller than the sum of its proper divisors (1683827396).

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

1530752140 is a wasteful number, since it uses less digits than its factorization.

1530752140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76537616 (or 76537614 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1530752140 is about 39124.8276673521. The cubic root of 1530752140 is about 1152.4841423685.

The spelling of 1530752140 in words is "one billion, five hundred thirty million, seven hundred fifty-two thousand, one hundred forty".