100261541 has 4 divisors (see below), whose sum is σ = 100282272. Its totient is φ = 100240812.

The previous prime is 100261519. The next prime is 100261549. The reversal of 100261541 is 145162001.

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 100261541 - 2¹⁴ = 100245157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100261549) 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, 1166 + ... + 14208.

It is an arithmetic number, because the mean of its divisors is an integer number (25070568).

Almost surely, 2^100261541 is an apocalyptic number.

It is an amenable number.

100261541 is a deficient number, since it is larger than the sum of its proper divisors (20731).

100261541 is an equidigital number, since it uses as much as digits as its factorization.

100261541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20730.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 100261541 is about 10013.0685107014. The cubic root of 100261541 is about 464.5631863549.

The spelling of 100261541 in words is "one hundred million, two hundred sixty-one thousand, five hundred forty-one".