146001891 has 16 divisors (see below), whose sum is σ = 223483904. Its totient is φ = 83052864.

The previous prime is 146001883. The next prime is 146001893. The reversal of 146001891 is 198100641.

It is not a de Polignac number, because 146001891 - 2³ = 146001883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146001893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10906 + ... + 20271.

It is an arithmetic number, because the mean of its divisors is an integer number (13967744).

Almost surely, 2^146001891 is an apocalyptic number.

146001891 is a deficient number, since it is larger than the sum of its proper divisors (77482013).

146001891 is a wasteful number, since it uses less digits than its factorization.

146001891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31410.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 146001891 is about 12083.1242234780. The cubic root of 146001891 is about 526.5660161681.

The spelling of 146001891 in words is "one hundred forty-six million, one thousand, eight hundred ninety-one".