1542883957 has 2 divisors, whose sum is σ = 1542883958. Its totient is φ = 1542883956.

The previous prime is 1542883949. The next prime is 1542884017. The reversal of 1542883957 is 7593882451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193978916 + 348905041 = 34554^2 + 18679^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542883957 - 2³ = 1542883949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542883057) 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, 771441978 + 771441979.

It is an arithmetic number, because the mean of its divisors is an integer number (771441979).

Almost surely, 2^1542883957 is an apocalyptic number.

It is an amenable number.

1542883957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542883957 is an equidigital number, since it uses as much as digits as its factorization.

1542883957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The square root of 1542883957 is about 39279.5615683271. The cubic root of 1542883957 is about 1155.5207653936.

The spelling of 1542883957 in words is "one billion, five hundred forty-two million, eight hundred eighty-three thousand, nine hundred fifty-seven".