101445643 has 16 divisors (see below), whose sum is σ = 112543200. Its totient is φ = 90849024.

The previous prime is 101445629. The next prime is 101445667. The reversal of 101445643 is 346544101.

It is not a de Polignac number, because 101445643 - 2⁵ = 101445611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101445343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96183 + ... + 97231.

It is an arithmetic number, because the mean of its divisors is an integer number (7033950).

Almost surely, 2^101445643 is an apocalyptic number.

101445643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101445643 is a deficient number, since it is larger than the sum of its proper divisors (11097557).

101445643 is a wasteful number, since it uses less digits than its factorization.

101445643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 101445643 is about 10072.0227859154. The cubic root of 101445643 is about 466.3848843671.

Adding to 101445643 its reverse (346544101), we get a palindrome (447989744).

The spelling of 101445643 in words is "one hundred one million, four hundred forty-five thousand, six hundred forty-three".