42145077 has 24 divisors (see below), whose sum is σ = 61906656. Its totient is φ = 25347168.

The previous prime is 42145073. The next prime is 42145099. The reversal of 42145077 is 77054124.

It is not a de Polignac number, because 42145077 - 2² = 42145073 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145073) 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 23 ways as a sum of consecutive naturals, for example, 331788 + ... + 331914.

It is an arithmetic number, because the mean of its divisors is an integer number (2579444).

Almost surely, 2^42145077 is an apocalyptic number.

It is an amenable number.

42145077 is a deficient number, since it is larger than the sum of its proper divisors (19761579).

42145077 is a wasteful number, since it uses less digits than its factorization.

42145077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 42145077 is about 6491.9239829191. The cubic root of 42145077 is about 348.0024359058.

The spelling of 42145077 in words is "forty-two million, one hundred forty-five thousand, seventy-seven".