99101249 has 4 divisors (see below), whose sum is σ = 106724436. Its totient is φ = 91478064.

The previous prime is 99101243. The next prime is 99101263. The reversal of 99101249 is 94210199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94210199 = 479 ⋅196681.

It can be written as a sum of positive squares in 2 ways, for example, as 37761025 + 61340224 = 6145^2 + 7832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99101249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99101243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3811574 + ... + 3811599.

It is an arithmetic number, because the mean of its divisors is an integer number (26681109).

Almost surely, 2^99101249 is an apocalyptic number.

It is an amenable number.

99101249 is a deficient number, since it is larger than the sum of its proper divisors (7623187).

99101249 is a wasteful number, since it uses less digits than its factorization.

99101249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623186.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 99101249 is about 9954.9610245345. The cubic root of 99101249 is about 462.7641523903.

The spelling of 99101249 in words is "ninety-nine million, one hundred one thousand, two hundred forty-nine".