1542132961 has 2 divisors, whose sum is σ = 1542132962. Its totient is φ = 1542132960.

The previous prime is 1542132923. The next prime is 1542132983. The reversal of 1542132961 is 1692312451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285652736 + 256480225 = 35856^2 + 16015^2 .

It is an emirp because it is prime and its reverse (1692312451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1542132961 - 2⁷ = 1542132833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542132901) 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, 771066480 + 771066481.

It is an arithmetic number, because the mean of its divisors is an integer number (771066481).

Almost surely, 2^1542132961 is an apocalyptic number.

It is an amenable number.

1542132961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542132961 is an equidigital number, since it uses as much as digits as its factorization.

1542132961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 1542132961 is about 39270.0007766743. Note that the first 3 decimals coincide. The cubic root of 1542132961 is about 1155.3332524128. Note that the first 3 decimals are identical.

The spelling of 1542132961 in words is "one billion, five hundred forty-two million, one hundred thirty-two thousand, nine hundred sixty-one".