101445121 has 4 divisors (see below), whose sum is σ = 101473200. Its totient is φ = 101417044.

The previous prime is 101445061. The next prime is 101445151. The reversal of 101445121 is 121544101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101445121 is a prime.

It is a super-2 number, since 2×101445121² = 20582225149409282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101445151) 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, 7651 + ... + 16168.

It is an arithmetic number, because the mean of its divisors is an integer number (25368300).

Almost surely, 2^101445121 is an apocalyptic number.

It is an amenable number.

101445121 is a deficient number, since it is larger than the sum of its proper divisors (28079).

101445121 is an equidigital number, since it uses as much as digits as its factorization.

101445121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28078.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 101445121 is about 10071.9968725174. The cubic root of 101445121 is about 466.3840844204.

Adding to 101445121 its reverse (121544101), we get a palindrome (222989222).

The spelling of 101445121 in words is "one hundred one million, four hundred forty-five thousand, one hundred twenty-one".