146235017909 has 4 divisors (see below), whose sum is σ = 154837077804. Its totient is φ = 137632958016.

The previous prime is 146235017899. The next prime is 146235017941. The reversal of 146235017909 is 909710532641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107249700100 + 38985317809 = 327490^2 + 197447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146235017909 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 (146235017959) 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, 4301029922 + ... + 4301029955.

It is an arithmetic number, because the mean of its divisors is an integer number (38709269451).

Almost surely, 2^146235017909 is an apocalyptic number.

It is an amenable number.

146235017909 is a deficient number, since it is larger than the sum of its proper divisors (8602059895).

146235017909 is an equidigital number, since it uses as much as digits as its factorization.

146235017909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602059894.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 146235017909 in words is "one hundred forty-six billion, two hundred thirty-five million, seventeen thousand, nine hundred nine".