146040891 has 16 divisors (see below), whose sum is σ = 200047104. Its totient is φ = 94722464.

The previous prime is 146040889. The next prime is 146040899. The reversal of 146040891 is 198040641.

It is a cyclic number.

It is not a de Polignac number, because 146040891 - 2¹ = 146040889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146040899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21400 + ... + 27386.

It is an arithmetic number, because the mean of its divisors is an integer number (12502944).

Almost surely, 2^146040891 is an apocalyptic number.

146040891 is a deficient number, since it is larger than the sum of its proper divisors (54006213).

146040891 is a wasteful number, since it uses less digits than its factorization.

146040891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 146040891 is about 12084.7379367531. The cubic root of 146040891 is about 526.6128974020.

The spelling of 146040891 in words is "one hundred forty-six million, forty thousand, eight hundred ninety-one".