105115051 has 4 divisors (see below), whose sum is σ = 105514992. Its totient is φ = 104715112.

The previous prime is 105115033. The next prime is 105115069. The reversal of 105115051 is 150511501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150511501 = 7 ⋅21501643.

It is an interprime number because it is at equal distance from previous prime (105115033) and next prime (105115069).

It is a cyclic number.

It is not a de Polignac number, because 105115051 - 2⁵ = 105115019 is a prime.

It is a super-2 number, since 2×105115051² = 22098347893465202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105115081) 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, 199576 + ... + 200101.

It is an arithmetic number, because the mean of its divisors is an integer number (26378748).

Almost surely, 2^105115051 is an apocalyptic number.

105115051 is a deficient number, since it is larger than the sum of its proper divisors (399941).

105115051 is an equidigital number, since it uses as much as digits as its factorization.

105115051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399940.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 105115051 is about 10252.5631429414. The cubic root of 105115051 is about 471.9416447893.

Adding to 105115051 its reverse (150511501), we get a palindrome (255626552).

The spelling of 105115051 in words is "one hundred five million, one hundred fifteen thousand, fifty-one".