42771045 has 8 divisors (see below), whose sum is σ = 68433696. Its totient is φ = 22811216.

The previous prime is 42771023. The next prime is 42771067. The reversal of 42771045 is 54017724.

It is an interprime number because it is at equal distance from previous prime (42771023) and next prime (42771067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42771045 - 2⁵ = 42771013 is a prime.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1425687 + ... + 1425716.

It is an arithmetic number, because the mean of its divisors is an integer number (8554212).

Almost surely, 2^42771045 is an apocalyptic number.

It is an amenable number.

42771045 is a deficient number, since it is larger than the sum of its proper divisors (25662651).

42771045 is a wasteful number, since it uses less digits than its factorization.

42771045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851411.

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

The square root of 42771045 is about 6539.9575686697. The cubic root of 42771045 is about 349.7169003265.

Adding to 42771045 its reverse (54017724), we get a palindrome (96788769).

The spelling of 42771045 in words is "forty-two million, seven hundred seventy-one thousand, forty-five".