146220456 has 32 divisors (see below), whose sum is σ = 366020640. Its totient is φ = 48677568.

The previous prime is 146220449. The next prime is 146220463. The reversal of 146220456 is 654022641.

It is an interprime number because it is at equal distance from previous prime (146220449) and next prime (146220463).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17575 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (11438145).

Almost surely, 2^146220456 is an apocalyptic number.

It is an amenable number.

146220456 is an abundant number, since it is smaller than the sum of its proper divisors (219800184).

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

146220456 is a wasteful number, since it uses less digits than its factorization.

146220456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833 (or 7829 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 146220456 is about 12092.1650666868. The cubic root of 146220456 is about 526.8286418069.

The spelling of 146220456 in words is "one hundred forty-six million, two hundred twenty thousand, four hundred fifty-six".