42119905 has 16 divisors (see below), whose sum is σ = 51617664. Its totient is φ = 32987520.

The previous prime is 42119899. The next prime is 42119911. The reversal of 42119905 is 50991124.

It is an interprime number because it is at equal distance from previous prime (42119899) and next prime (42119911).

It is not a de Polignac number, because 42119905 - 2²¹ = 40022753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 60610 + ... + 61300.

It is an arithmetic number, because the mean of its divisors is an integer number (3226104).

Almost surely, 2^42119905 is an apocalyptic number.

It is an amenable number.

42119905 is a deficient number, since it is larger than the sum of its proper divisors (9497759).

42119905 is a wasteful number, since it uses less digits than its factorization.

With its successor (42119906) it forms an eRAP, since the sums of their prime factors are consecutive (936 and 937).

42119905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 42119905 is about 6489.9849768701. The cubic root of 42119905 is about 347.9331382754.

The spelling of 42119905 in words is "forty-two million, one hundred nineteen thousand, nine hundred five".