42145235 has 8 divisors (see below), whose sum is σ = 55172016. Its totient is φ = 30651040.

The previous prime is 42145153. The next prime is 42145241. The reversal of 42145235 is 53254124.

It is a happy number.

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

It is not a de Polignac number, because 42145235 - 2⁸ = 42144979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383084 + ... + 383193.

It is an arithmetic number, because the mean of its divisors is an integer number (6896502).

Almost surely, 2^42145235 is an apocalyptic number.

42145235 is a deficient number, since it is larger than the sum of its proper divisors (13026781).

42145235 is a wasteful number, since it uses less digits than its factorization.

42145235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766293.

The product of its digits is 4800, while the sum is 26.

The square root of 42145235 is about 6491.9361518733. The cubic root of 42145235 is about 348.0028707871.

Adding to 42145235 its reverse (53254124), we get a palindrome (95399359).

Subtracting 42145235 from its reverse (53254124), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 4214 and 5235, that added together give a palindrome (9449).

The spelling of 42145235 in words is "forty-two million, one hundred forty-five thousand, two hundred thirty-five".