105651013 has 4 divisors (see below), whose sum is σ = 113778028. Its totient is φ = 97524000.

The previous prime is 105651011. The next prime is 105651037. The reversal of 105651013 is 310156501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310156501 = 7933 ⋅39097.

It can be written as a sum of positive squares in 2 ways, for example, as 4809249 + 100841764 = 2193^2 + 10042^2 .

It is a cyclic number.

It is not a de Polignac number, because 105651013 - 2¹ = 105651011 is a prime.

It is a super-2 number, since 2×105651013² = 22324273095852338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105651011) 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, 4063488 + ... + 4063513.

It is an arithmetic number, because the mean of its divisors is an integer number (28444507).

Almost surely, 2^105651013 is an apocalyptic number.

105651013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

105651013 is a deficient number, since it is larger than the sum of its proper divisors (8127015).

105651013 is an equidigital number, since it uses as much as digits as its factorization.

105651013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127014.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 105651013 is about 10278.6678611579. The cubic root of 105651013 is about 472.7423994431.

The spelling of 105651013 in words is "one hundred five million, six hundred fifty-one thousand, thirteen".