146021522 has 8 divisors (see below), whose sum is σ = 220144716. Its totient is φ = 72639952.

The previous prime is 146021437. The next prime is 146021581. The reversal of 146021522 is 225120641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 145709041 + 312481 = 12071^2 + 559^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184913 + ... + 185700.

Almost surely, 2^146021522 is an apocalyptic number.

146021522 is a deficient number, since it is larger than the sum of its proper divisors (74123194).

146021522 is a wasteful number, since it uses less digits than its factorization.

146021522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370812.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 146021522 is about 12083.9365274732. The cubic root of 146021522 is about 526.5896153013.

The spelling of 146021522 in words is "one hundred forty-six million, twenty-one thousand, five hundred twenty-two".