100514561 has 4 divisors (see below), whose sum is σ = 114873792. Its totient is φ = 86155332.

The previous prime is 100514501. The next prime is 100514567. The reversal of 100514561 is 165415001.

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 100514561 - 2⁶ = 100514497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100514567) 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, 7179605 + ... + 7179618.

It is an arithmetic number, because the mean of its divisors is an integer number (28718448).

Almost surely, 2^100514561 is an apocalyptic number.

It is an amenable number.

100514561 is a deficient number, since it is larger than the sum of its proper divisors (14359231).

100514561 is an equidigital number, since it uses as much as digits as its factorization.

100514561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359230.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 100514561 is about 10025.6950382505. The cubic root of 100514561 is about 464.9536485960.

Adding to 100514561 its reverse (165415001), we get a palindrome (265929562).

The spelling of 100514561 in words is "one hundred million, five hundred fourteen thousand, five hundred sixty-one".