5142985 has 4 divisors (see below), whose sum is σ = 6171588. Its totient is φ = 4114384.

The previous prime is 5142967. The next prime is 5142989. The reversal of 5142985 is 5892415.

5142985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5892415 = 5 ⋅1178483.

It can be written as a sum of positive squares in 2 ways, for example, as 915849 + 4227136 = 957^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 5142985 - 2⁵ = 5142953 is a prime.

It is a Duffinian number.

5142985 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142985.

It is not an unprimeable number, because it can be changed into a prime (5142989) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 514294 + ... + 514303.

It is an arithmetic number, because the mean of its divisors is an integer number (1542897).

Almost surely, 2^5142985 is an apocalyptic number.

It is an amenable number.

5142985 is a deficient number, since it is larger than the sum of its proper divisors (1028603).

5142985 is a wasteful number, since it uses less digits than its factorization.

5142985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028602.

The product of its digits is 14400, while the sum is 34.

The square root of 5142985 is about 2267.8150277304. The cubic root of 5142985 is about 172.6123052203.

The spelling of 5142985 in words is "five million, one hundred forty-two thousand, nine hundred eighty-five".