42151210 has 16 divisors (see below), whose sum is σ = 78489000. Its totient is φ = 16278976.

The previous prime is 42151199. The next prime is 42151229. The reversal of 42151210 is 1215124.

It can be written as a sum of positive squares in 4 ways, for example, as 30393169 + 11758041 = 5513^2 + 3429^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72385 + ... + 72964.

Almost surely, 2^42151210 is an apocalyptic number.

42151210 is a deficient number, since it is larger than the sum of its proper divisors (36337790).

42151210 is a wasteful number, since it uses less digits than its factorization.

42151210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145385.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 42151210 is about 6492.3963218522. The cubic root of 42151210 is about 348.0193156584.

Adding to 42151210 its reverse (1215124), we get a palindrome (43366334).

The spelling of 42151210 in words is "forty-two million, one hundred fifty-one thousand, two hundred ten".