99130401 has 6 divisors (see below), whose sum is σ = 143188370. Its totient is φ = 66086928.

The previous prime is 99130387. The next prime is 99130433. The reversal of 99130401 is 10403199.

It can be written as a sum of positive squares in only one way, i.e., 54774801 + 44355600 = 7401^2 + 6660^2 .

It is not a de Polignac number, because 99130401 - 2¹⁰ = 99129377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99130481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5507236 + ... + 5507253.

Almost surely, 2^99130401 is an apocalyptic number.

It is an amenable number.

99130401 is a deficient number, since it is larger than the sum of its proper divisors (44057969).

99130401 is a wasteful number, since it uses less digits than its factorization.

99130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014495 (or 11014492 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 99130401 is about 9956.4251114544. The cubic root of 99130401 is about 462.8095240955.

The spelling of 99130401 in words is "ninety-nine million, one hundred thirty thousand, four hundred one".