101023145 has 8 divisors (see below), whose sum is σ = 121612104. Its totient is φ = 80562304.

The previous prime is 101023127. The next prime is 101023157. The reversal of 101023145 is 541320101.

It can be written as a sum of positive squares in 4 ways, for example, as 10621081 + 90402064 = 3259^2 + 9508^2 .

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 101023145 - 2⁶ = 101023081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30284 + ... + 33453.

It is an arithmetic number, because the mean of its divisors is an integer number (15201513).

Almost surely, 2^101023145 is an apocalyptic number.

It is an amenable number.

101023145 is a deficient number, since it is larger than the sum of its proper divisors (20588959).

101023145 is an equidigital number, since it uses as much as digits as its factorization.

101023145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64059.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101023145 is about 10051.0270619475. The cubic root of 101023145 is about 465.7365211608.

Adding to 101023145 its reverse (541320101), we get a palindrome (642343246).

The spelling of 101023145 in words is "one hundred one million, twenty-three thousand, one hundred forty-five".