1331975750 has 32 divisors (see below), whose sum is σ = 2849670720. Its totient is φ = 456676800.

The previous prime is 1331975741. The next prime is 1331975767. The reversal of 1331975750 is 575791331.

It is a junction number, because it is equal to n+sod(n) for n = 1331975698 and 1331975707.

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, 378815 + ... + 382314.

It is an arithmetic number, because the mean of its divisors is an integer number (89052210).

Almost surely, 2^1331975750 is an apocalyptic number.

1331975750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331975750 is an abundant number, since it is smaller than the sum of its proper divisors (1517694970).

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

1331975750 is an equidigital number, since it uses as much as digits as its factorization.

1331975750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761153 (or 761143 counting only the distinct ones).

The product of its (nonzero) digits is 99225, while the sum is 41.

The square root of 1331975750 is about 36496.2429573237. The cubic root of 1331975750 is about 1100.2687359939.

The spelling of 1331975750 in words is "one billion, three hundred thirty-one million, nine hundred seventy-five thousand, seven hundred fifty".