1542212212 has 12 divisors (see below), whose sum is σ = 2764697796. Its totient is φ = 752298560.

The previous prime is 1542212153. The next prime is 1542212213. The reversal of 1542212212 is 2122122451.

It can be written as a sum of positive squares in 2 ways, for example, as 857552656 + 684659556 = 29284^2 + 26166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542212213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4701703 + ... + 4702030.

It is an arithmetic number, because the mean of its divisors is an integer number (230391483).

Almost surely, 2^1542212212 is an apocalyptic number.

It is an amenable number.

1542212212 is a deficient number, since it is larger than the sum of its proper divisors (1222485584).

1542212212 is a wasteful number, since it uses less digits than its factorization.

1542212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9403778 (or 9403776 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 1542212212 is about 39271.0098164027. The cubic root of 1542212212 is about 1155.3530431290.

Adding to 1542212212 its reverse (2122122451), we get a palindrome (3664334663).

The spelling of 1542212212 in words is "one billion, five hundred forty-two million, two hundred twelve thousand, two hundred twelve".