105111054 has 16 divisors (see below), whose sum is σ = 233580240. Its totient is φ = 35037000.

The previous prime is 105111023. The next prime is 105111077. The reversal of 105111054 is 450111501.

It is a happy number.

It is a super-2 number, since 2×105111054² = 22096667345981832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973197 + ... + 973304.

It is an arithmetic number, because the mean of its divisors is an integer number (14598765).

Almost surely, 2^105111054 is an apocalyptic number.

105111054 is an abundant number, since it is smaller than the sum of its proper divisors (128469186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105111054 is a wasteful number, since it uses less digits than its factorization.

105111054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946512 (or 1946506 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 105111054 is about 10252.3682142225. The cubic root of 105111054 is about 471.9356628529.

Adding to 105111054 its reverse (450111501), we get a palindrome (555222555).

The spelling of 105111054 in words is "one hundred five million, one hundred eleven thousand, fifty-four".