42957061 has 4 divisors (see below), whose sum is σ = 49093792. Its totient is φ = 36820332.

The previous prime is 42957049. The next prime is 42957071. The reversal of 42957061 is 16075924.

42957061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42957061 - 2⁵ = 42957029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42957001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3068355 + ... + 3068368.

It is an arithmetic number, because the mean of its divisors is an integer number (12273448).

Almost surely, 2^42957061 is an apocalyptic number.

It is an amenable number.

42957061 is a deficient number, since it is larger than the sum of its proper divisors (6136731).

42957061 is an equidigital number, since it uses as much as digits as its factorization.

42957061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136730.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 42957061 is about 6554.1636384820. The cubic root of 42957061 is about 350.2231529301.

The spelling of 42957061 in words is "forty-two million, nine hundred fifty-seven thousand, sixty-one".