99541501 has 4 divisors (see below), whose sum is σ = 100801600. Its totient is φ = 98281404.

The previous prime is 99541483. The next prime is 99541523. The reversal of 99541501 is 10514599.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10514599 = 311 ⋅33809.

It is a cyclic number.

It is not a de Polignac number, because 99541501 - 2¹⁵ = 99508733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99541901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629931 + ... + 630088.

It is an arithmetic number, because the mean of its divisors is an integer number (25200400).

Almost surely, 2^99541501 is an apocalyptic number.

It is an amenable number.

99541501 is a deficient number, since it is larger than the sum of its proper divisors (1260099).

99541501 is a wasteful number, since it uses less digits than its factorization.

99541501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260098.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 99541501 is about 9977.0487119188. The cubic root of 99541501 is about 463.4484084661.

The spelling of 99541501 in words is "ninety-nine million, five hundred forty-one thousand, five hundred one".