4212515445 has 16 divisors (see below), whose sum is σ = 6957445632. Its totient is φ = 2174201280.

The previous prime is 4212515431. The next prime is 4212515471. The reversal of 4212515445 is 5445152124.

It is a happy number.

It is not a de Polignac number, because 4212515445 - 2¹³ = 4212507253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4529122 + ... + 4530051.

It is an arithmetic number, because the mean of its divisors is an integer number (434840352).

Almost surely, 2^4212515445 is an apocalyptic number.

It is an amenable number.

4212515445 is a deficient number, since it is larger than the sum of its proper divisors (2744930187).

4212515445 is a wasteful number, since it uses less digits than its factorization.

4212515445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059212.

The product of its digits is 32000, while the sum is 33.

The square root of 4212515445 is about 64903.8939124611. The cubic root of 4212515445 is about 1615.0296581952.

Adding to 4212515445 its reverse (5445152124), we get a palindrome (9657667569).

The spelling of 4212515445 in words is "four billion, two hundred twelve million, five hundred fifteen thousand, four hundred forty-five".