1542151213 has 2 divisors, whose sum is σ = 1542151214. Its totient is φ = 1542151212.

The previous prime is 1542151199. The next prime is 1542151223. The reversal of 1542151213 is 3121512451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1485871209 + 56280004 = 38547^2 + 7502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542151213 - 2⁵ = 1542151181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542151223) by changing a digit.

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 as a sum of consecutive naturals, namely, 771075606 + 771075607.

It is an arithmetic number, because the mean of its divisors is an integer number (771075607).

Almost surely, 2^1542151213 is an apocalyptic number.

It is an amenable number.

1542151213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542151213 is an equidigital number, since it uses as much as digits as its factorization.

1542151213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 1542151213 is about 39270.2331671204. The cubic root of 1542151213 is about 1155.3378103984.

Adding to 1542151213 its reverse (3121512451), we get a palindrome (4663663664).

The spelling of 1542151213 in words is "one billion, five hundred forty-two million, one hundred fifty-one thousand, two hundred thirteen".