105208151 has 4 divisors (see below), whose sum is σ = 106991400. Its totient is φ = 103424904.

The previous prime is 105208133. The next prime is 105208211. The reversal of 105208151 is 151802501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151802501 = 29 ⋅5234569.

It is a cyclic number.

It is not a de Polignac number, because 105208151 - 2¹⁸ = 104946007 is a prime.

It is a super-2 number, since 2×105208151² = 22137510073677602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105208651) 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, 891536 + ... + 891653.

It is an arithmetic number, because the mean of its divisors is an integer number (26747850).

Almost surely, 2^105208151 is an apocalyptic number.

105208151 is a deficient number, since it is larger than the sum of its proper divisors (1783249).

105208151 is an equidigital number, since it uses as much as digits as its factorization.

105208151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783248.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 105208151 is about 10257.1024660964. The cubic root of 105208151 is about 472.0809359795.

The spelling of 105208151 in words is "one hundred five million, two hundred eight thousand, one hundred fifty-one".