1131040250 has 32 divisors (see below), whose sum is σ = 2126504016. Its totient is φ = 450451200.

The previous prime is 1131040201. The next prime is 1131040259. The reversal of 1131040250 is 520401311.

It can be written as a sum of positive squares in 8 ways, for example, as 130393561 + 1000646689 = 11419^2 + 31633^2 .

It is not an unprimeable number, because it can be changed into a prime (1131040259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 48542 + ... + 67958.

Almost surely, 2^1131040250 is an apocalyptic number.

1131040250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131040250 is a deficient number, since it is larger than the sum of its proper divisors (995463766).

1131040250 is a wasteful number, since it uses less digits than its factorization.

1131040250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1131040250 is about 33630.9418541914. The cubic root of 1131040250 is about 1041.8999569931.

Adding to 1131040250 its reverse (520401311), we get a palindrome (1651441561).

The spelling of 1131040250 in words is "one billion, one hundred thirty-one million, forty thousand, two hundred fifty".