105239252836 has 27 divisors (see below), whose sum is σ = 194394714969. Its totient is φ = 49844333088.

The previous prime is 105239252819. The next prime is 105239252843. The reversal of 105239252836 is 638252932501.

It is a happy number.

The square root of 105239252836 is 324406.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 92994502500 + 12244750336 = 304950^2 + 110656^2 .

It is a super-2 number, since 2×105239252836² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12323160 + ... + 12331696.

Almost surely, 2^105239252836 is an apocalyptic number.

105239252836 is the 324406-th square number.

It is an amenable number.

105239252836 is a deficient number, since it is larger than the sum of its proper divisors (89155462133).

105239252836 is an frugal number, since it uses more digits than its factorization.

105239252836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17116 (or 8558 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 105239252836 in words is "one hundred five billion, two hundred thirty-nine million, two hundred fifty-two thousand, eight hundred thirty-six".