146722566 has 32 divisors (see below), whose sum is σ = 316090368. Its totient is φ = 45270720.

The previous prime is 146722561. The next prime is 146722577. The reversal of 146722566 is 665227641.

It is a super-2 number, since 2×146722566² = 43055022747248712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146722561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12871 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (9877824).

Almost surely, 2^146722566 is an apocalyptic number.

146722566 is an abundant number, since it is smaller than the sum of its proper divisors (169367802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146722566 is a wasteful number, since it uses less digits than its factorization.

146722566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34356.

The product of its digits is 120960, while the sum is 39.

The square root of 146722566 is about 12112.9090643000. The cubic root of 146722566 is about 527.4309827869.

The spelling of 146722566 in words is "one hundred forty-six million, seven hundred twenty-two thousand, five hundred sixty-six".