42667157 has 4 divisors (see below), whose sum is σ = 45949260. Its totient is φ = 39385056.

The previous prime is 42667153. The next prime is 42667159. The reversal of 42667157 is 75176624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26977636 + 15689521 = 5194^2 + 3961^2 .

It is a cyclic number.

It is not a de Polignac number, because 42667157 - 2² = 42667153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42667157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42667151) 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 3 ways as a sum of consecutive naturals, for example, 1641032 + ... + 1641057.

It is an arithmetic number, because the mean of its divisors is an integer number (11487315).

Almost surely, 2^42667157 is an apocalyptic number.

It is an amenable number.

42667157 is a deficient number, since it is larger than the sum of its proper divisors (3282103).

42667157 is a wasteful number, since it uses less digits than its factorization.

42667157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282102.

The product of its digits is 70560, while the sum is 38.

The square root of 42667157 is about 6532.0101806412. The cubic root of 42667157 is about 349.4335244695.

It can be divided in two parts, 42667 and 157, that added together give a palindrome (42824).

The spelling of 42667157 in words is "forty-two million, six hundred sixty-seven thousand, one hundred fifty-seven".