1131241650 has 96 divisors (see below), whose sum is σ = 3497776128. Its totient is φ = 235060800.

The previous prime is 1131241603. The next prime is 1131241763. The reversal of 1131241650 is 561421311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131241650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37422 + ... + 60521.

It is an arithmetic number, because the mean of its divisors is an integer number (36435168).

Almost surely, 2^1131241650 is an apocalyptic number.

1131241650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131241650 is an abundant number, since it is smaller than the sum of its proper divisors (2366534478).

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

1131241650 is a wasteful number, since it uses less digits than its factorization.

1131241650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97976 (or 97971 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1131241650 is about 33633.9359873328. The cubic root of 1131241650 is about 1041.9617956994.

Adding to 1131241650 its reverse (561421311), we get a palindrome (1692662961).

The spelling of 1131241650 in words is "one billion, one hundred thirty-one million, two hundred forty-one thousand, six hundred fifty".