513042145 has 32 divisors (see below), whose sum is σ = 769867776. Its totient is φ = 318859200.

The previous prime is 513042119. The next prime is 513042151. The reversal of 513042145 is 541240315.

It is a happy number.

It is not a de Polignac number, because 513042145 - 2⁵ = 513042113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139480 + ... + 143110.

It is an arithmetic number, because the mean of its divisors is an integer number (24058368).

Almost surely, 2^513042145 is an apocalyptic number.

513042145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

513042145 is a deficient number, since it is larger than the sum of its proper divisors (256825631).

513042145 is a wasteful number, since it uses less digits than its factorization.

513042145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

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

The square root of 513042145 is about 22650.4336603077. The cubic root of 513042145 is about 800.5424160021.

The spelling of 513042145 in words is "five hundred thirteen million, forty-two thousand, one hundred forty-five".