42121514 has 16 divisors (see below), whose sum is σ = 66958920. Its totient is φ = 19837440.

The previous prime is 42121501. The next prime is 42121549. The reversal of 42121514 is 41512124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35796289 + 6325225 = 5983^2 + 2515^2 .

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, 6479 + ... + 11234.

Almost surely, 2^42121514 is an apocalyptic number.

42121514 is a deficient number, since it is larger than the sum of its proper divisors (24837406).

42121514 is a wasteful number, since it uses less digits than its factorization.

42121514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785.

The product of its digits is 320, while the sum is 20.

The square root of 42121514 is about 6490.1089359116. The cubic root of 42121514 is about 347.9375686216.

Adding to 42121514 its reverse (41512124), we get a palindrome (83633638).

The spelling of 42121514 in words is "forty-two million, one hundred twenty-one thousand, five hundred fourteen".