105013553 has 4 divisors (see below), whose sum is σ = 108634740. Its totient is φ = 101392368.

The previous prime is 105013537. The next prime is 105013567. The reversal of 105013553 is 355310501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53919649 + 51093904 = 7343^2 + 7148^2 .

It is a cyclic number.

It is not a de Polignac number, because 105013553 - 2⁴ = 105013537 is a prime.

It is a super-2 number, since 2×105013553² = 22055692627367618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105013253) 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, 1810550 + ... + 1810607.

It is an arithmetic number, because the mean of its divisors is an integer number (27158685).

Almost surely, 2^105013553 is an apocalyptic number.

It is an amenable number.

105013553 is a deficient number, since it is larger than the sum of its proper divisors (3621187).

105013553 is an equidigital number, since it uses as much as digits as its factorization.

105013553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621186.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 105013553 is about 10247.6120633053. The cubic root of 105013553 is about 471.7896952239.

The spelling of 105013553 in words is "one hundred five million, thirteen thousand, five hundred fifty-three".