42203139 has 16 divisors (see below), whose sum is σ = 61496064. Its totient is φ = 25532000.

The previous prime is 42203131. The next prime is 42203171. The reversal of 42203139 is 93130224.

It is a cyclic number.

It is not a de Polignac number, because 42203139 - 2³ = 42203131 is a prime.

It is a super-2 number, since 2×42203139² = 3562209882906642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42203131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31789 + ... + 33089.

It is an arithmetic number, because the mean of its divisors is an integer number (3843504).

Almost surely, 2^42203139 is an apocalyptic number.

42203139 is a deficient number, since it is larger than the sum of its proper divisors (19292925).

42203139 is a wasteful number, since it uses less digits than its factorization.

42203139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 42203139 is about 6496.3943076140. The cubic root of 42203139 is about 348.1621733890.

The spelling of 42203139 in words is "forty-two million, two hundred three thousand, one hundred thirty-nine".