105240051 has 12 divisors (see below), whose sum is σ = 173729712. Its totient is φ = 60137136.

The previous prime is 105240017. The next prime is 105240061. The reversal of 105240051 is 150042501.

It is not a de Polignac number, because 105240051 - 2⁶ = 105239987 is a prime.

It is a super-2 number, since 2×105240051² = 22150936668965202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105240061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835176 + ... + 835301.

It is an arithmetic number, because the mean of its divisors is an integer number (14477476).

Almost surely, 2^105240051 is an apocalyptic number.

105240051 is a deficient number, since it is larger than the sum of its proper divisors (68489661).

105240051 is a wasteful number, since it uses less digits than its factorization.

105240051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670490 (or 1670487 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 105240051 is about 10258.6573682914. The cubic root of 105240051 is about 472.1286441337.

Adding to 105240051 its reverse (150042501), we get a palindrome (255282552).

The spelling of 105240051 in words is "one hundred five million, two hundred forty thousand, fifty-one".