105202340225 has 36 divisors (see below), whose sum is σ = 139337863056. Its totient is φ = 78771108960.

The previous prime is 105202340213. The next prime is 105202340237. The reversal of 105202340225 is 522043202501.

It is an interprime number because it is at equal distance from previous prime (105202340213) and next prime (105202340237).

It is not a de Polignac number, because 105202340225 - 2¹⁸ = 105202078081 is a prime.

It is a super-2 number, since 2×105202340225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105202340194 and 105202340203.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 678854 + ... + 819296.

It is an arithmetic number, because the mean of its divisors is an integer number (3870496196).

Almost surely, 2^105202340225 is an apocalyptic number.

It is an amenable number.

105202340225 is a deficient number, since it is larger than the sum of its proper divisors (34135522831).

105202340225 is a wasteful number, since it uses less digits than its factorization.

105202340225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140574 (or 140550 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 105202340225 its reverse (522043202501), we get a palindrome (627245542726).

The spelling of 105202340225 in words is "one hundred five billion, two hundred two million, three hundred forty thousand, two hundred twenty-five".