99491141 has 12 divisors (see below), whose sum is σ = 103652484. Its totient is φ = 95491200.

The previous prime is 99491071. The next prime is 99491173. The reversal of 99491141 is 14119499.

99491141 = T₁ + T₂ + ... + T₈₄₁.

99491141 is a nontrivial binomial coefficient, being equal to C(843, 3).

It can be written as a sum of positive squares in 6 ways, for example, as 5808100 + 93683041 = 2410^2 + 9679^2 .

It is not a de Polignac number, because 99491141 - 2¹⁴ = 99474757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99491095 and 99491104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99491341) by changing a digit.

It is the 841-st tetrahedral number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236111 + ... + 236531.

It is an arithmetic number, because the mean of its divisors is an integer number (8637707).

Almost surely, 2^99491141 is an apocalyptic number.

It is an amenable number.

99491141 is a deficient number, since it is larger than the sum of its proper divisors (4161343).

99491141 is a wasteful number, since it uses less digits than its factorization.

99491141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 731 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The square root of 99491141 is about 9974.5246002003. The cubic root of 99491141 is about 463.3702393987.

The spelling of 99491141 in words is "ninety-nine million, four hundred ninety-one thousand, one hundred forty-one".