105513051 has 16 divisors (see below), whose sum is σ = 161120000. Its totient is φ = 60166368.

The previous prime is 105513041. The next prime is 105513071. The reversal of 105513051 is 150315501.

It is not a de Polignac number, because 105513051 - 2⁵ = 105513019 is a prime.

It is a super-2 number, since 2×105513051² = 22266007862657202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105513041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5445 + ... + 15513.

It is an arithmetic number, because the mean of its divisors is an integer number (10070000).

Almost surely, 2^105513051 is an apocalyptic number.

105513051 is a deficient number, since it is larger than the sum of its proper divisors (55606949).

105513051 is a wasteful number, since it uses less digits than its factorization.

105513051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 105513051 is about 10271.9545851800. The cubic root of 105513051 is about 472.5365364653.

Adding to 105513051 its reverse (150315501), we get a palindrome (255828552).

The spelling of 105513051 in words is "one hundred five million, five hundred thirteen thousand, fifty-one".