146220554 has 16 divisors (see below), whose sum is σ = 225957600. Its totient is φ = 70924560.

The previous prime is 146220539. The next prime is 146220563. The reversal of 146220554 is 455022641.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7109 + ... + 18519.

It is an arithmetic number, because the mean of its divisors is an integer number (14122350).

Almost surely, 2^146220554 is an apocalyptic number.

146220554 is a deficient number, since it is larger than the sum of its proper divisors (79737046).

146220554 is a wasteful number, since it uses less digits than its factorization.

146220554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11605.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 146220554 is about 12092.1691188967. The cubic root of 146220554 is about 526.8287595040.

The spelling of 146220554 in words is "one hundred forty-six million, two hundred twenty thousand, five hundred fifty-four".