1151530250 has 32 divisors (see below), whose sum is σ = 2321491536. Its totient is φ = 425179200.

The previous prime is 1151530249. The next prime is 1151530271. The reversal of 1151530250 is 520351511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 61011721 + 1090518529 = 7811^2 + 33023^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173909 + ... + 180408.

Almost surely, 2^1151530250 is an apocalyptic number.

1151530250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151530250 is an abundant number, since it is smaller than the sum of its proper divisors (1169961286).

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

1151530250 is a wasteful number, since it uses less digits than its factorization.

1151530250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354347 (or 354337 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1151530250 is about 33934.2047203113. The cubic root of 1151530250 is about 1048.1540506648.

Adding to 1151530250 its reverse (520351511), we get a palindrome (1671881761).

The spelling of 1151530250 in words is "one billion, one hundred fifty-one million, five hundred thirty thousand, two hundred fifty".