1151635012 has 24 divisors (see below), whose sum is σ = 2327905440.
Its totient is φ = 492677760.
The previous prime is 1151635003. The next prime is 1151635013. The reversal of 1151635012 is 2105361511.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (1151635013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769062 + ... + 770557.
It is an arithmetic number, because the mean of its divisors is an integer number (96996060).
Almost surely, 21151635012 is an apocalyptic number.
It is an amenable number.
1151635012 is an abundant number, since it is smaller than the sum of its proper divisors (1176270428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1151635012 is a wasteful number, since it uses less digits than its factorization.
1151635012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1539651 (or 1539649 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 25.
The square root of 1151635012 is about 33935.7482899670.
The cubic root of 1151635012 is about 1048.1858354384.
Adding to 1151635012 its reverse (2105361511), we get a palindrome (3256996523).
The spelling of 1151635012 in words is "one billion, one hundred fifty-one million, six hundred thirty-five thousand, twelve".