101377818 has 20 divisors (see below), whose sum is σ = 227161770. Its totient is φ = 33792552.

The previous prime is 101377811. The next prime is 101377819. The reversal of 101377818 is 818773101.

It can be written as a sum of positive squares in only one way, i.e., 98545329 + 2832489 = 9927^2 + 1683^2 .

It is a super-2 number, since 2×101377818² = 20554923964882248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101377811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 312733 + ... + 313056.

Almost surely, 2^101377818 is an apocalyptic number.

101377818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

101377818 is an abundant number, since it is smaller than the sum of its proper divisors (125783952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101377818 is an equidigital number, since it uses as much as digits as its factorization.

101377818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625803 (or 625794 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The square root of 101377818 is about 10068.6552230176. The cubic root of 101377818 is about 466.2809219358.

It can be divided in two parts, 10137 and 7818, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 101377818 in words is "one hundred one million, three hundred seventy-seven thousand, eight hundred eighteen".