1151635013 has 2 divisors, whose sum is σ = 1151635014.
Its totient is φ = 1151635012.
The previous prime is 1151635003. The next prime is 1151635117. The reversal of 1151635013 is 3105361511.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 829324804 + 322310209 = 28798^2 + 17953^2
It is a cyclic number.
It is not a de Polignac number, because 1151635013 - 24 = 1151634997 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1151635003) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575817506 + 575817507.
It is an arithmetic number, because the mean of its divisors is an integer number (575817507).
Almost surely, 21151635013 is an apocalyptic number.
It is an amenable number.
1151635013 is a deficient number, since it is larger than the sum of its proper divisors (1).
1151635013 is an equidigital number, since it uses as much as digits as its factorization.
1151635013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1350, while the sum is 26.
The square root of 1151635013 is about 33935.7483047008.
The cubic root of 1151635013 is about 1048.1858357418.
Adding to 1151635013 its reverse (3105361511), we get a palindrome (4256996524).
The spelling of 1151635013 in words is "one billion, one hundred fifty-one million, six hundred thirty-five thousand, thirteen".