146107021 has 4 divisors (see below), whose sum is σ = 146420352. Its totient is φ = 145793692.

The previous prime is 146107019. The next prime is 146107097. The reversal of 146107021 is 120701641.

146107021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 146107021 - 2¹ = 146107019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146106983 and 146107001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146107121) 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, 155965 + ... + 156898.

It is an arithmetic number, because the mean of its divisors is an integer number (36605088).

Almost surely, 2^146107021 is an apocalyptic number.

It is an amenable number.

146107021 is a deficient number, since it is larger than the sum of its proper divisors (313331).

146107021 is an equidigital number, since it uses as much as digits as its factorization.

146107021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313330.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 146107021 is about 12087.4737228256. The cubic root of 146107021 is about 526.6923720741.

Adding to 146107021 its reverse (120701641), we get a palindrome (266808662).

The spelling of 146107021 in words is "one hundred forty-six million, one hundred seven thousand, twenty-one".