1530502140 has 48 divisors (see below), whose sum is σ = 4294860192. Its totient is φ = 407233536.

The previous prime is 1530502111. The next prime is 1530502177. The reversal of 1530502140 is 412050351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489 + ... + 55328.

It is an arithmetic number, because the mean of its divisors is an integer number (89476254).

Almost surely, 2^1530502140 is an apocalyptic number.

1530502140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530502140 is an abundant number, since it is smaller than the sum of its proper divisors (2764358052).

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

1530502140 is a wasteful number, since it uses less digits than its factorization.

1530502140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56286 (or 56284 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1530502140 is about 39121.6326346435. The cubic root of 1530502140 is about 1152.4213983281.

Adding to 1530502140 its reverse (412050351), we get a palindrome (1942552491).

It can be divided in two parts, 15 and 30502140, that multiplied together give a square (457532100 = 21390²).

The spelling of 1530502140 in words is "one billion, five hundred thirty million, five hundred two thousand, one hundred forty".