101022545 has 8 divisors (see below), whose sum is σ = 130552296. Its totient is φ = 74601216.

The previous prime is 101022541. The next prime is 101022557. The reversal of 101022545 is 545220101.

It can be written as a sum of positive squares in 4 ways, for example, as 6990736 + 94031809 = 2644^2 + 9697^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101022545 - 2² = 101022541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101022541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777032 + ... + 777161.

It is an arithmetic number, because the mean of its divisors is an integer number (16319037).

Almost surely, 2^101022545 is an apocalyptic number.

It is an amenable number.

101022545 is a deficient number, since it is larger than the sum of its proper divisors (29529751).

101022545 is a wasteful number, since it uses less digits than its factorization.

101022545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554211.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 101022545 is about 10050.9972142072. The cubic root of 101022545 is about 465.7355991197.

Adding to 101022545 its reverse (545220101), we get a palindrome (646242646).

The spelling of 101022545 in words is "one hundred one million, twenty-two thousand, five hundred forty-five".