5142809165 has 8 divisors (see below), whose sum is σ = 6646091928. Its totient is φ = 3797766720.

The previous prime is 5142809107. The next prime is 5142809183. The reversal of 5142809165 is 5619082415.

It can be written as a sum of positive squares in 4 ways, for example, as 15389929 + 5127419236 = 3923^2 + 71606^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5142809165 is a prime.

It is a super-2 number, since 2×5142809165² = 52896972215215994450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 39560006 + ... + 39560135.

It is an arithmetic number, because the mean of its divisors is an integer number (830761491).

Almost surely, 2^5142809165 is an apocalyptic number.

It is an amenable number.

5142809165 is a deficient number, since it is larger than the sum of its proper divisors (1503282763).

5142809165 is a wasteful number, since it uses less digits than its factorization.

5142809165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79120159.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 5142809165 is about 71713.3820496565. The cubic root of 5142809165 is about 1726.1033803389.

The spelling of 5142809165 in words is "five billion, one hundred forty-two million, eight hundred nine thousand, one hundred sixty-five".