5142664 has 8 divisors (see below), whose sum is σ = 9642510. Its totient is φ = 2571328.

The previous prime is 5142661. The next prime is 5142677. The reversal of 5142664 is 4662415.

5142664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5098564 + 44100 = 2258^2 + 210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321409 + ... + 321424.

Almost surely, 2^5142664 is an apocalyptic number.

It is an amenable number.

5142664 is a deficient number, since it is larger than the sum of its proper divisors (4499846).

5142664 is a wasteful number, since it uses less digits than its factorization.

5142664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642839 (or 642835 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 5142664 is about 2267.7442536582. The cubic root of 5142664 is about 172.6087139400.

Subtracting from 5142664 its reverse (4662415), we obtain a square (480249 = 693²).

The spelling of 5142664 in words is "five million, one hundred forty-two thousand, six hundred sixty-four".