146803891 has 8 divisors (see below), whose sum is σ = 167396544. Its totient is φ = 127539840.

The previous prime is 146803847. The next prime is 146803907. The reversal of 146803891 is 198308641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146803891 - 2¹⁷ = 146672819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146803801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331915 + ... + 332356.

It is an arithmetic number, because the mean of its divisors is an integer number (20924568).

Almost surely, 2^146803891 is an apocalyptic number.

146803891 is a deficient number, since it is larger than the sum of its proper divisors (20592653).

146803891 is a wasteful number, since it uses less digits than its factorization.

146803891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664301.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 146803891 is about 12116.2655550297. The cubic root of 146803891 is about 527.5284124765.

The spelling of 146803891 in words is "one hundred forty-six million, eight hundred three thousand, eight hundred ninety-one".