101679381 has 10 divisors (see below), whose sum is σ = 151891542. Its totient is φ = 67786200.

The previous prime is 101679379. The next prime is 101679407. The reversal of 101679381 is 183976101.

It can be written as a sum of positive squares in only one way, i.e., 64883025 + 36796356 = 8055^2 + 6066^2 .

It is not a de Polignac number, because 101679381 - 2¹ = 101679379 is a prime.

It is a super-2 number, since 2×101679381² = 20677393041086322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101679311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 627570 + ... + 627731.

Almost surely, 2^101679381 is an apocalyptic number.

It is an amenable number.

101679381 is a deficient number, since it is larger than the sum of its proper divisors (50212161).

101679381 is an equidigital number, since it uses as much as digits as its factorization.

101679381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255313 (or 1255304 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 101679381 is about 10083.6194394672. The cubic root of 101679381 is about 466.7428043007.

The spelling of 101679381 in words is "one hundred one million, six hundred seventy-nine thousand, three hundred eighty-one".