42143253 has 8 divisors (see below), whose sum is σ = 57112416. Its totient is φ = 27634800.

The previous prime is 42143249. The next prime is 42143263. The reversal of 42143253 is 35234124.

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

It is not a de Polignac number, because 42143253 - 2² = 42143249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114963 + ... + 115328.

It is an arithmetic number, because the mean of its divisors is an integer number (7139052).

Almost surely, 2^42143253 is an apocalyptic number.

It is an amenable number.

42143253 is a deficient number, since it is larger than the sum of its proper divisors (14969163).

42143253 is a wasteful number, since it uses less digits than its factorization.

42143253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230355.

The product of its digits is 2880, while the sum is 24.

The square root of 42143253 is about 6491.7834991626. The cubic root of 42143253 is about 347.9974154254.

Adding to 42143253 its reverse (35234124), we get a palindrome (77377377).

The spelling of 42143253 in words is "forty-two million, one hundred forty-three thousand, two hundred fifty-three".