146036621 has 4 divisors (see below), whose sum is σ = 146113500. Its totient is φ = 145959744.

The previous prime is 146036599. The next prime is 146036651. The reversal of 146036621 is 126630641.

It is a happy number.

146036621 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 an emirpimes, since its reverse is a distinct semiprime: 126630641 = 109 ⋅1161749.

It can be written as a sum of positive squares in 2 ways, for example, as 133148521 + 12888100 = 11539^2 + 3590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146036621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146036651) 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, 35516 + ... + 39413.

It is an arithmetic number, because the mean of its divisors is an integer number (36528375).

Almost surely, 2^146036621 is an apocalyptic number.

It is an amenable number.

146036621 is a deficient number, since it is larger than the sum of its proper divisors (76879).

146036621 is an equidigital number, since it uses as much as digits as its factorization.

146036621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76878.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 146036621 is about 12084.5612663431. The cubic root of 146036621 is about 526.6077649148.

The spelling of 146036621 in words is "one hundred forty-six million, thirty-six thousand, six hundred twenty-one".