42142697 has 4 divisors (see below), whose sum is σ = 42857040. Its totient is φ = 41428356.

The previous prime is 42142687. The next prime is 42142729. The reversal of 42142697 is 79624124.

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 42142697 - 2¹² = 42138601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42142637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357083 + ... + 357200.

It is an arithmetic number, because the mean of its divisors is an integer number (10714260).

Almost surely, 2^42142697 is an apocalyptic number.

It is an amenable number.

42142697 is a deficient number, since it is larger than the sum of its proper divisors (714343).

42142697 is an equidigital number, since it uses as much as digits as its factorization.

42142697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714342.

The product of its digits is 24192, while the sum is 35.

The square root of 42142697 is about 6491.7406756586. The cubic root of 42142697 is about 347.9958850308.

The spelling of 42142697 in words is "forty-two million, one hundred forty-two thousand, six hundred ninety-seven".