101491384 has 8 divisors (see below), whose sum is σ = 190296360. Its totient is φ = 50745688.

The previous prime is 101491367. The next prime is 101491409. The reversal of 101491384 is 483194101.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×101491384³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6343204 + ... + 6343219.

It is an arithmetic number, because the mean of its divisors is an integer number (23787045).

Almost surely, 2^101491384 is an apocalyptic number.

It is an amenable number.

101491384 is a deficient number, since it is larger than the sum of its proper divisors (88804976).

101491384 is a wasteful number, since it uses less digits than its factorization.

101491384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12686429 (or 12686425 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 101491384 is about 10074.2932258298. The cubic root of 101491384 is about 466.4549701947.

The spelling of 101491384 in words is "one hundred one million, four hundred ninety-one thousand, three hundred eighty-four".