105504137 has 4 divisors (see below), whose sum is σ = 105576576. Its totient is φ = 105431700.

The previous prime is 105504127. The next prime is 105504149. The reversal of 105504137 is 731405501.

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: 731405501 = 17 ⋅43023853.

It is a cyclic number.

It is not a de Polignac number, because 105504137 - 2⁶ = 105504073 is a prime.

It is a super-2 number, since 2×105504137² = 22262245848229538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105504127) 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, 33989 + ... + 36962.

It is an arithmetic number, because the mean of its divisors is an integer number (26394144).

Almost surely, 2^105504137 is an apocalyptic number.

It is an amenable number.

105504137 is a deficient number, since it is larger than the sum of its proper divisors (72439).

105504137 is an equidigital number, since it uses as much as digits as its factorization.

105504137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72438.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 105504137 is about 10271.5206761219. The cubic root of 105504137 is about 472.5232290774.

Adding to 105504137 its reverse (731405501), we get a palindrome (836909638).

The spelling of 105504137 in words is "one hundred five million, five hundred four thousand, one hundred thirty-seven".