5142447 has 10 divisors (see below), whose sum is σ = 7682048. Its totient is φ = 3428244.

The previous prime is 5142421. The next prime is 5142461. The reversal of 5142447 is 7442415.

It is not a de Polignac number, because 5142447 - 2⁶ = 5142383 is a prime.

It is a super-2 number, since 2×5142447² = 52889522295618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

5142447 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142647) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31663 + ... + 31824.

Almost surely, 2^5142447 is an apocalyptic number.

5142447 is a deficient number, since it is larger than the sum of its proper divisors (2539601).

5142447 is an equidigital number, since it uses as much as digits as its factorization.

5142447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63499 (or 63490 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 5142447 is about 2267.6964082522. The cubic root of 5142447 is about 172.6062861050.

Subtracting 5142447 from its reverse (7442415), we obtain a cube (2299968 = 132³).

The spelling of 5142447 in words is "five million, one hundred forty-two thousand, four hundred forty-seven".