1021140250 has 48 divisors (see below), whose sum is σ = 2070015480. Its totient is φ = 377020800.

The previous prime is 1021140229. The next prime is 1021140259. The reversal of 1021140250 is 520411201.

It can be written as a sum of positive squares in 12 ways, for example, as 82391929 + 938748321 = 9077^2 + 30639^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021140259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30166 + ... + 54334.

Almost surely, 2^1021140250 is an apocalyptic number.

1021140250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021140250 is an abundant number, since it is smaller than the sum of its proper divisors (1048875230).

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

1021140250 is a wasteful number, since it uses less digits than its factorization.

1021140250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24212 (or 24189 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1021140250 is about 31955.2851653682. The cubic root of 1021140250 is about 1006.9976684176.

Adding to 1021140250 its reverse (520411201), we get a palindrome (1541551451).

The spelling of 1021140250 in words is "one billion, twenty-one million, one hundred forty thousand, two hundred fifty".