4212015149 has 4 divisors (see below), whose sum is σ = 4459780764. Its totient is φ = 3964249536.

The previous prime is 4212015131. The next prime is 4212015173. The reversal of 4212015149 is 9415102124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1982475625 + 2229539524 = 44525^2 + 47218^2 .

It is a cyclic number.

It is not a de Polignac number, because 4212015149 - 2¹² = 4212011053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212015179) 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, 123882782 + ... + 123882815.

It is an arithmetic number, because the mean of its divisors is an integer number (1114945191).

Almost surely, 2^4212015149 is an apocalyptic number.

It is an amenable number.

4212015149 is a deficient number, since it is larger than the sum of its proper divisors (247765615).

4212015149 is a wasteful number, since it uses less digits than its factorization.

4212015149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247765614.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 4212015149 is about 64900.0396687090. The cubic root of 4212015149 is about 1614.9657197656.

The spelling of 4212015149 in words is "four billion, two hundred twelve million, fifteen thousand, one hundred forty-nine".