146521453788 has 36 divisors (see below), whose sum is σ = 370428266208. Its totient is φ = 48833285760.

The previous prime is 146521453783. The next prime is 146521453817. The reversal of 146521453788 is 887354125641.

It is a happy number.

146521453788 is a `hidden beast` number, since 1 + 4 + 6 + 5 + 21 + 4 + 537 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146521453783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49453 + ... + 543588.

Almost surely, 2^146521453788 is an apocalyptic number.

146521453788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

146521453788 is an abundant number, since it is smaller than the sum of its proper divisors (223906812420).

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

146521453788 is a wasteful number, since it uses less digits than its factorization.

146521453788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599914 (or 599909 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 146521453788 in words is "one hundred forty-six billion, five hundred twenty-one million, four hundred fifty-three thousand, seven hundred eighty-eight".