1131621350 has 48 divisors (see below), whose sum is σ = 2156433408. Its totient is φ = 441611040.

The previous prime is 1131621347. The next prime is 1131621389. The reversal of 1131621350 is 531261311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1040507 + ... + 1041593.

It is an arithmetic number, because the mean of its divisors is an integer number (44925696).

Almost surely, 2^1131621350 is an apocalyptic number.

1131621350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131621350 is a deficient number, since it is larger than the sum of its proper divisors (1024812058).

1131621350 is a wasteful number, since it uses less digits than its factorization.

1131621350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1131621350 is about 33639.5801103403. The cubic root of 1131621350 is about 1042.0783604309.

Adding to 1131621350 its reverse (531261311), we get a palindrome (1662882661).

The spelling of 1131621350 in words is "one billion, one hundred thirty-one million, six hundred twenty-one thousand, three hundred fifty".