146131865 has 16 divisors (see below), whose sum is σ = 194913216. Its totient is φ = 104270400.

The previous prime is 146131823. The next prime is 146131901. The reversal of 146131865 is 568131641.

It is not a de Polignac number, because 146131865 - 2⁶ = 146131801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22151 + ... + 27980.

It is an arithmetic number, because the mean of its divisors is an integer number (12182076).

Almost surely, 2^146131865 is an apocalyptic number.

It is an amenable number.

146131865 is a deficient number, since it is larger than the sum of its proper divisors (48781351).

146131865 is a wasteful number, since it uses less digits than its factorization.

146131865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50200.

The product of its digits is 17280, while the sum is 35.

The square root of 146131865 is about 12088.5013545931. The cubic root of 146131865 is about 526.7222232603.

The spelling of 146131865 in words is "one hundred forty-six million, one hundred thirty-one thousand, eight hundred sixty-five".