73145099 has 2 divisors, whose sum is σ = 73145100. Its totient is φ = 73145098.

The previous prime is 73145087. The next prime is 73145131. The reversal of 73145099 is 99054137.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73145099 - 2⁸ = 73144843 is a prime.

It is not a weakly prime, because it can be changed into another prime (73145299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36572549 + 36572550.

It is an arithmetic number, because the mean of its divisors is an integer number (36572550).

Almost surely, 2^73145099 is an apocalyptic number.

73145099 is a deficient number, since it is larger than the sum of its proper divisors (1).

73145099 is an equidigital number, since it uses as much as digits as its factorization.

73145099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 73145099 is about 8552.4908067767. The cubic root of 73145099 is about 418.2106395456.

The spelling of 73145099 in words is "seventy-three million, one hundred forty-five thousand, ninety-nine".