146628109 has 16 divisors (see below), whose sum is σ = 155805696. Its totient is φ = 137779200.

The previous prime is 146628107. The next prime is 146628113. The reversal of 146628109 is 901826641.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 146628109 - 2¹ = 146628107 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 (146628107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228429 + ... + 229069.

It is an arithmetic number, because the mean of its divisors is an integer number (9737856).

Almost surely, 2^146628109 is an apocalyptic number.

It is an amenable number.

146628109 is a deficient number, since it is larger than the sum of its proper divisors (9177587).

146628109 is a wasteful number, since it uses less digits than its factorization.

146628109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 146628109 is about 12109.0094144814. The cubic root of 146628109 is about 527.3177753813.

The spelling of 146628109 in words is "one hundred forty-six million, six hundred twenty-eight thousand, one hundred nine".