101438047 has 4 divisors (see below), whose sum is σ = 102004920. Its totient is φ = 100871176.

The previous prime is 101437991. The next prime is 101438063. The reversal of 101438047 is 740834101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740834101 = 7 ⋅105833443.

It is a cyclic number.

It is not a de Polignac number, because 101438047 - 2¹⁵ = 101405279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101438087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283168 + ... + 283525.

It is an arithmetic number, because the mean of its divisors is an integer number (25501230).

Almost surely, 2^101438047 is an apocalyptic number.

101438047 is a deficient number, since it is larger than the sum of its proper divisors (566873).

101438047 is an equidigital number, since it uses as much as digits as its factorization.

101438047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566872.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 101438047 is about 10071.6456947214. The cubic root of 101438047 is about 466.3732434926.

The spelling of 101438047 in words is "one hundred one million, four hundred thirty-eight thousand, forty-seven".