146309091 has 8 divisors (see below), whose sum is σ = 199615680. Its totient is φ = 95270952.

The previous prime is 146309087. The next prime is 146309117. The reversal of 146309091 is 190903641.

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

It is not a de Polignac number, because 146309091 - 2² = 146309087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146309011) 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 7 ways as a sum of consecutive naturals, for example, 566961 + ... + 567218.

It is an arithmetic number, because the mean of its divisors is an integer number (24951960).

Almost surely, 2^146309091 is an apocalyptic number.

146309091 is a deficient number, since it is larger than the sum of its proper divisors (53306589).

146309091 is a wasteful number, since it uses less digits than its factorization.

146309091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134225.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 146309091 is about 12095.8294878855. The cubic root of 146309091 is about 526.9350702003.

The spelling of 146309091 in words is "one hundred forty-six million, three hundred nine thousand, ninety-one".