39142503 has 6 divisors (see below), whose sum is σ = 56539184. Its totient is φ = 26094996.

The previous prime is 39142501. The next prime is 39142511. The reversal of 39142503 is 30524193.

It is not a de Polignac number, because 39142503 - 2¹ = 39142501 is a prime.

It is a super-2 number, since 2×39142503² = 3064271082210018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39142501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2174575 + ... + 2174592.

Almost surely, 2^39142503 is an apocalyptic number.

39142503 is a deficient number, since it is larger than the sum of its proper divisors (17396681).

39142503 is a wasteful number, since it uses less digits than its factorization.

39142503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4349173 (or 4349170 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 39142503 is about 6256.3969663058. The cubic root of 39142503 is about 339.5336831053.

Adding to 39142503 its reverse (30524193), we get a palindrome (69666696).

The spelling of 39142503 in words is "thirty-nine million, one hundred forty-two thousand, five hundred three".