146640622 has 8 divisors (see below), whose sum is σ = 223244136. Its totient is φ = 72225912.

The previous prime is 146640619. The next prime is 146640629. The reversal of 146640622 is 226046641.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146640629) 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 3 ways as a sum of consecutive naturals, for example, 547033 + ... + 547300.

It is an arithmetic number, because the mean of its divisors is an integer number (27905517).

Almost surely, 2^146640622 is an apocalyptic number.

146640622 is a deficient number, since it is larger than the sum of its proper divisors (76603514).

146640622 is a wasteful number, since it uses less digits than its factorization.

146640622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094402.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 146640622 is about 12109.5260848639. The cubic root of 146640622 is about 527.3327750966.

The spelling of 146640622 in words is "one hundred forty-six million, six hundred forty thousand, six hundred twenty-two".