146946691 has 4 divisors (see below), whose sum is σ = 155590632. Its totient is φ = 138302752.

The previous prime is 146946673. The next prime is 146946713. The reversal of 146946691 is 196649641.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 146946691 - 2⁵ = 146946659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146946601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4321945 + ... + 4321978.

It is an arithmetic number, because the mean of its divisors is an integer number (38897658).

Almost surely, 2^146946691 is an apocalyptic number.

146946691 is a deficient number, since it is larger than the sum of its proper divisors (8643941).

146946691 is an equidigital number, since it uses as much as digits as its factorization.

146946691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8643940.

The product of its digits is 279936, while the sum is 46.

The square root of 146946691 is about 12122.1570275261. The cubic root of 146946691 is about 527.6994039592.

The spelling of 146946691 in words is "one hundred forty-six million, nine hundred forty-six thousand, six hundred ninety-one".