1542212213 has 2 divisors, whose sum is σ = 1542212214. Its totient is φ = 1542212212.

The previous prime is 1542212153. The next prime is 1542212219. The reversal of 1542212213 is 3122122451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437395569 + 104816644 = 37913^2 + 10238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1542212213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771106106 + 771106107.

It is an arithmetic number, because the mean of its divisors is an integer number (771106107).

Almost surely, 2^1542212213 is an apocalyptic number.

It is an amenable number.

1542212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542212213 is an equidigital number, since it uses as much as digits as its factorization.

1542212213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 1542212213 is about 39271.0098291348. The cubic root of 1542212213 is about 1155.3530433787.

Adding to 1542212213 its reverse (3122122451), we get a palindrome (4664334664).

The spelling of 1542212213 in words is "one billion, five hundred forty-two million, two hundred twelve thousand, two hundred thirteen".