100805377 has 2 divisors, whose sum is σ = 100805378. Its totient is φ = 100805376.

The previous prime is 100805371. The next prime is 100805381. The reversal of 100805377 is 773508001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71385601 + 29419776 = 8449^2 + 5424^2 .

It is a cyclic number.

It is not a de Polignac number, because 100805377 - 2⁷ = 100805249 is a prime.

It is a super-2 number, since 2×100805377² = 20323448064224258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100805371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50402688 + 50402689.

It is an arithmetic number, because the mean of its divisors is an integer number (50402689).

Almost surely, 2^100805377 is an apocalyptic number.

It is an amenable number.

100805377 is a deficient number, since it is larger than the sum of its proper divisors (1).

100805377 is an equidigital number, since it uses as much as digits as its factorization.

100805377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 100805377 is about 10040.1880958476. The cubic root of 100805377 is about 465.4016293416.

The spelling of 100805377 in words is "one hundred million, eight hundred five thousand, three hundred seventy-seven".