146521380 has 48 divisors (see below), whose sum is σ = 410800320. Its totient is φ = 39020928.

The previous prime is 146521327. The next prime is 146521391. The reversal of 146521380 is 83125641.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72747 + ... + 74733.

It is an arithmetic number, because the mean of its divisors is an integer number (8558340).

Almost surely, 2^146521380 is an apocalyptic number.

146521380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146521380 is an abundant number, since it is smaller than the sum of its proper divisors (264278940).

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

146521380 is a wasteful number, since it uses less digits than its factorization.

146521380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 146521380 is about 12104.6016043487. The cubic root of 146521380 is about 527.1898013751.

The spelling of 146521380 in words is "one hundred forty-six million, five hundred twenty-one thousand, three hundred eighty".