1042540099 has 2 divisors, whose sum is σ = 1042540100. Its totient is φ = 1042540098.

The previous prime is 1042540069. The next prime is 1042540123. The reversal of 1042540099 is 9900452401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042540099 - 2¹⁵ = 1042507331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042540019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521270049 + 521270050.

It is an arithmetic number, because the mean of its divisors is an integer number (521270050).

Almost surely, 2^1042540099 is an apocalyptic number.

1042540099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042540099 is an equidigital number, since it uses as much as digits as its factorization.

1042540099 is an evil number, because the sum of its binary digits is even.

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

The square root of 1042540099 is about 32288.3895386562. The cubic root of 1042540099 is about 1013.9835810098.

The spelling of 1042540099 in words is "one billion, forty-two million, five hundred forty thousand, ninety-nine".