1542544090 has 16 divisors (see below), whose sum is σ = 2782663272. Its totient is φ = 615665664.

The previous prime is 1542544067. The next prime is 1542544099. The reversal of 1542544090 is 904452451.

It can be written as a sum of positive squares in 4 ways, for example, as 1322704161 + 219839929 = 36369^2 + 14827^2 .

It is not an unprimeable number, because it can be changed into a prime (1542544099) 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 in 7 ways as a sum of consecutive naturals, for example, 164199 + ... + 173338.

Almost surely, 2^1542544090 is an apocalyptic number.

1542544090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1542544090 is a deficient number, since it is larger than the sum of its proper divisors (1240119182).

1542544090 is a wasteful number, since it uses less digits than its factorization.

1542544090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338001.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1542544090 is about 39275.2350724983. The cubic root of 1542544090 is about 1155.4359129945.

The spelling of 1542544090 in words is "one billion, five hundred forty-two million, five hundred forty-four thousand, ninety".