99450109 has 4 divisors (see below), whose sum is σ = 108491040. Its totient is φ = 90409180.

The previous prime is 99450103. The next prime is 99450121. The reversal of 99450109 is 90105499.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99450109 - 2¹³ = 99441917 is a prime.

It is a super-2 number, since 2×99450109² = 19780648360223762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99450103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4520449 + ... + 4520470.

It is an arithmetic number, because the mean of its divisors is an integer number (27122760).

Almost surely, 2^99450109 is an apocalyptic number.

It is an amenable number.

99450109 is a deficient number, since it is larger than the sum of its proper divisors (9040931).

99450109 is a wasteful number, since it uses less digits than its factorization.

99450109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040930.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 99450109 is about 9972.4675482049. The cubic root of 99450109 is about 463.3065297999.

The spelling of 99450109 in words is "ninety-nine million, four hundred fifty thousand, one hundred nine".