146009865 has 32 divisors (see below), whose sum is σ = 246758400. Its totient is φ = 73574336.

The previous prime is 146009863. The next prime is 146009873. The reversal of 146009865 is 568900641.

It is a cyclic number.

It is not a de Polignac number, because 146009865 - 2¹ = 146009863 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146009863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26086 + ... + 31184.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 2^146009865 is an apocalyptic number.

146009865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146009865 is a deficient number, since it is larger than the sum of its proper divisors (100748535).

146009865 is a wasteful number, since it uses less digits than its factorization.

146009865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 146009865 is about 12083.4541833037. The cubic root of 146009865 is about 526.5756022563.

The spelling of 146009865 in words is "one hundred forty-six million, nine thousand, eight hundred sixty-five".