1002501140 has 48 divisors (see below), whose sum is σ = 2163889728. Its totient is φ = 389915904.

The previous prime is 1002501133. The next prime is 1002501151. The reversal of 1002501140 is 411052001.

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, 197879 + ... + 202881.

It is an arithmetic number, because the mean of its divisors is an integer number (45081036).

Almost surely, 2^1002501140 is an apocalyptic number.

1002501140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002501140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081944864).

1002501140 is an abundant number, since it is smaller than the sum of its proper divisors (1161388588).

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

1002501140 is a wasteful number, since it uses less digits than its factorization.

1002501140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5288 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1002501140 is about 31662.2984004636. The cubic root of 1002501140 is about 1000.8330192196.

Adding to 1002501140 its reverse (411052001), we get a palindrome (1413553141).

The spelling of 1002501140 in words is "one billion, two million, five hundred one thousand, one hundred forty".