42152371 has 4 divisors (see below), whose sum is σ = 42539200. Its totient is φ = 41765544.

The previous prime is 42152347. The next prime is 42152377. The reversal of 42152371 is 17325124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42152371 - 2⁵ = 42152339 is a prime.

It is a super-4 number, since 4×42152371⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42152377) 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, 193251 + ... + 193468.

It is an arithmetic number, because the mean of its divisors is an integer number (10634800).

Almost surely, 2^42152371 is an apocalyptic number.

42152371 is a deficient number, since it is larger than the sum of its proper divisors (386829).

42152371 is a wasteful number, since it uses less digits than its factorization.

42152371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386828.

The product of its digits is 1680, while the sum is 25.

The square root of 42152371 is about 6492.4857335230. The cubic root of 42152371 is about 348.0225108748.

Adding to 42152371 its reverse (17325124), we get a palindrome (59477495).

The spelling of 42152371 in words is "forty-two million, one hundred fifty-two thousand, three hundred seventy-one".