1542005453 has 2 divisors, whose sum is σ = 1542005454. Its totient is φ = 1542005452.

The previous prime is 1542005431. The next prime is 1542005471. The reversal of 1542005453 is 3545002451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023168169 + 518837284 = 31987^2 + 22778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1542005453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542005053) 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 as a sum of consecutive naturals, namely, 771002726 + 771002727.

It is an arithmetic number, because the mean of its divisors is an integer number (771002727).

Almost surely, 2^1542005453 is an apocalyptic number.

It is an amenable number.

1542005453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542005453 is an equidigital number, since it uses as much as digits as its factorization.

1542005453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1542005453 is about 39268.3772646642. The cubic root of 1542005453 is about 1155.3014094402.

The spelling of 1542005453 in words is "one billion, five hundred forty-two million, five thousand, four hundred fifty-three".