1331082250 has 32 divisors (see below), whose sum is σ = 2498895360. Its totient is φ = 530914000.

The previous prime is 1331082239. The next prime is 1331082251. The reversal of 1331082250 is 522801331.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1331082251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82335 + ... + 97165.

It is an arithmetic number, because the mean of its divisors is an integer number (78090480).

Almost surely, 2^1331082250 is an apocalyptic number.

1331082250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331082250 is a deficient number, since it is larger than the sum of its proper divisors (1167813110).

1331082250 is a wasteful number, since it uses less digits than its factorization.

1331082250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15207 (or 15197 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1331082250 is about 36483.9999177722. Note that the first 4 decimals coincide. The cubic root of 1331082250 is about 1100.0226579355.

Adding to 1331082250 its reverse (522801331), we get a palindrome (1853883581).

The spelling of 1331082250 in words is "one billion, three hundred thirty-one million, eighty-two thousand, two hundred fifty".