513542041 has 4 divisors (see below), whose sum is σ = 513599184. Its totient is φ = 513484900.

The previous prime is 513542027. The next prime is 513542053. The reversal of 513542041 is 140245315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 513542041 - 2⁷ = 513541913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513541997 and 513542015.

It is not an unprimeable number, because it can be changed into a prime (513542641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11815 + ... + 34156.

It is an arithmetic number, because the mean of its divisors is an integer number (128399796).

Almost surely, 2^513542041 is an apocalyptic number.

It is an amenable number.

513542041 is a deficient number, since it is larger than the sum of its proper divisors (57143).

513542041 is a wasteful number, since it uses less digits than its factorization.

513542041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57142.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 513542041 is about 22661.4659940614. The cubic root of 513542041 is about 800.8023413955.

Adding to 513542041 its reverse (140245315), we get a palindrome (653787356).

The spelling of 513542041 in words is "five hundred thirteen million, five hundred forty-two thousand, forty-one".