146386691 has 8 divisors (see below), whose sum is σ = 159960000. Its totient is φ = 132857640.

The previous prime is 146386679. The next prime is 146386703. The reversal of 146386691 is 196683641.

It is a happy number.

146386691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (146386679) and next prime (146386703).

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 146386691 - 2¹⁴ = 146370307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146386601) 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, 3941 + ... + 17558.

It is an arithmetic number, because the mean of its divisors is an integer number (19995000).

Almost surely, 2^146386691 is an apocalyptic number.

146386691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

146386691 is a deficient number, since it is larger than the sum of its proper divisors (13573309).

146386691 is a wasteful number, since it uses less digits than its factorization.

146386691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22129.

The product of its digits is 186624, while the sum is 44.

The square root of 146386691 is about 12099.0367798433. The cubic root of 146386691 is about 527.0282130441.

The spelling of 146386691 in words is "one hundred forty-six million, three hundred eighty-six thousand, six hundred ninety-one".