101312538 has 8 divisors (see below), whose sum is σ = 202625088. Its totient is φ = 33770844.

The previous prime is 101312507. The next prime is 101312543. The reversal of 101312538 is 835213101.

It is a sphenic number, since it is the product of 3 distinct primes.

101312538 is an admirable number.

It is a super-5 number, since 5×101312538⁵ (a number of 41 digits) contains 55555 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 8442706 + ... + 8442717.

It is an arithmetic number, because the mean of its divisors is an integer number (25328136).

Almost surely, 2^101312538 is an apocalyptic number.

101312538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

101312538 is a wasteful number, since it uses less digits than its factorization.

101312538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16885428.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 101312538 is about 10065.4129572512. The cubic root of 101312538 is about 466.1808166893.

Adding to 101312538 its reverse (835213101), we get a palindrome (936525639).

The spelling of 101312538 in words is "one hundred one million, three hundred twelve thousand, five hundred thirty-eight".