42502147 has 12 divisors (see below), whose sum is σ = 44899488. Its totient is φ = 40213200.

The previous prime is 42502127. The next prime is 42502153. The reversal of 42502147 is 74120524.

It is not a de Polignac number, because 42502147 - 2¹¹ = 42500099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42502127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44697 + ... + 45637.

It is an arithmetic number, because the mean of its divisors is an integer number (3741624).

Almost surely, 2^42502147 is an apocalyptic number.

42502147 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42502147 is a deficient number, since it is larger than the sum of its proper divisors (2397341).

42502147 is an equidigital number, since it uses as much as digits as its factorization.

42502147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42502147 is about 6519.3670705062. The cubic root of 42502147 is about 348.9824787388.

The spelling of 42502147 in words is "forty-two million, five hundred two thousand, one hundred forty-seven".